frequency polygon Archives – Mathemafia http://sh016.global.temp.domains/~mathemaf/tag/frequency-polygon/ Mathematics is like music - Enjoy it!!! Thu, 21 Jan 2021 05:23:46 +0000 en-US hourly 1 https://wordpress.org/?v=7.1 https://mathemafia.com/wp-content/uploads/2020/08/cropped-M__Logo__SM-1-32x32.png frequency polygon Archives – Mathemafia http://sh016.global.temp.domains/~mathemaf/tag/frequency-polygon/ 32 32 Statistics Quiz for Class 9 https://mathemafia.com/statistics-quiz-for-class-9/ Thu, 21 Jan 2021 05:19:50 +0000 http://sh016.global.temp.domains/~mathemaf/?p=5151 Statistics Quiz for Class 9 | Online MCQ test with answers If you have already watched the chapter 14 videos (Statistics) then you are good to attempt the following quiz. Good luck!!!

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Statistics Quiz for Class 9 | Online MCQ test with answers

If you have already watched the chapter 14 videos (Statistics) then you are good to attempt the following quiz. Good luck!!!

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Statistics Quiz for Class 9 appeared first on Mathemafia.

]]> Measures of Central Tendency https://mathemafia.com/measures-of-central-tendency/ Thu, 21 Jan 2021 04:48:31 +0000 http://sh016.global.temp.domains/~mathemaf/?p=5088 Measures of Central Tendency Very often we need to analyse a given data to find a value that can represent the entire data set. In other words we say the central tendency of the data set. Different types of data…

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Measures of Central Tendency

Very often we need to analyse a given data to find a value that can represent the entire data set. In other words we say the central tendency of the data set. Different types of data would require different methods to find this central value which can be used as the representation of the entire data set. For example, average number of students can be find using the mean of the data, splitting apples in large sized and small sized groups would require median and for a shoe company mode will be the best measure to decide about the investment.

So, following are three measures of central tendency that you must understand by watching the video embedded below. 

  • Mean
  • Median
  • Mode

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Measures of Central Tendency appeared first on Mathemafia.

]]> Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 9 https://mathemafia.com/class-9-chapter-14-statistics-exercise-14-3-question-9/ Sun, 17 Jan 2021 15:44:39 +0000 http://sh016.global.temp.domains/~mathemaf/?p=4920 Question 9: 100 surnames were randomly picked up from a local telephone directory and a frequency distribution of the number of letters in the English alphabet in the surnames was found as follows: (i) Draw a histogram to depict the…

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Question 9: 100 surnames were randomly picked up from a local telephone directory and a frequency distribution of the number of letters in the English alphabet in the surnames was found as follows:

(i) Draw a histogram to depict the given information.
(ii) Writetheclassintervalinwhichthemaximumnumberofsurnameslie.

Question 8
Ex: 14.4 | Question 1 & 2

Statistics – Bar graph, Histogram & Frequency polygon

In this tutorial you will learn how to draw few very important and basic graphs in statistics. It is bit lengthy video that covers different scenarios like uniform classes, varying width classes, continuous classes etc. It is a must watch video for every beginner to intermediate level of student of statistics. This video covers the following graphs:

  • Bar graph
  • Histogram
    • Uniform width
    • Varying width
  • Frequency polygon 

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 9 appeared first on Mathemafia.

]]> Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 8 https://mathemafia.com/class-9-chapter-14-statistics-exercise-14-3-question-8/ Sun, 17 Jan 2021 15:44:36 +0000 http://sh016.global.temp.domains/~mathemaf/?p=4919 Question 8: A random survey of the number of children of various age groups playing in a park was found as follows: Draw a histogram to represent the data above. Question 7 Question 9

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 8 appeared first on Mathemafia.

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Question 8: A random survey of the number of children of various age groups playing in a park was found as follows:

Draw a histogram to represent the data above.

Question 7
Question 9

Statistics – Bar graph, Histogram & Frequency polygon

In this tutorial you will learn how to draw few very important and basic graphs in statistics. It is bit lengthy video that covers different scenarios like uniform classes, varying width classes, continuous classes etc. It is a must watch video for every beginner to intermediate level of student of statistics. This video covers the following graphs:

  • Bar graph
  • Histogram
    • Uniform width
    • Varying width
  • Frequency polygon 

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 8 appeared first on Mathemafia.

]]> Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 7 https://mathemafia.com/class-9-chapter-14-statistics-exercise-14-3-question-7/ Sun, 17 Jan 2021 15:44:32 +0000 http://sh016.global.temp.domains/~mathemaf/?p=4918 Question 7: The runs scored by two teams A and B on the first 60 balls in a cricket match are given below: Represent the data of both the teams on the same graph by frequency polygons. [Hint : First…

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Question 7: The runs scored by two teams A and B on the first 60 balls in a cricket match are given below:

Represent the data of both the teams on the same graph by frequency polygons. [Hint : First make the class intervals continuous.]

Question 6
Question 8

Statistics – Bar graph, Histogram & Frequency polygon

In this tutorial you will learn how to draw few very important and basic graphs in statistics. It is bit lengthy video that covers different scenarios like uniform classes, varying width classes, continuous classes etc. It is a must watch video for every beginner to intermediate level of student of statistics. This video covers the following graphs:

  • Bar graph
  • Histogram
    • Uniform width
    • Varying width
  • Frequency polygon 

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 7 appeared first on Mathemafia.

]]> Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 6 https://mathemafia.com/class-9-chapter-14-statistics-exercise-14-3-question-6/ Sun, 17 Jan 2021 15:44:29 +0000 http://sh016.global.temp.domains/~mathemaf/?p=4917 Question 6: The following table gives the distribution of students of two sections according to the marks obtained by them: Represent the marks of the students of both the sections on the same graph by two frequency polygons. From the…

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 6 appeared first on Mathemafia.

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Question 6: The following table gives the distribution of students of two sections according to the marks obtained by them:

Represent the marks of the students of both the sections on the same graph by two frequency polygons. From the two polygons compare the performance of the two sections.

Question 5
Question 7

Statistics – Bar graph, Histogram & Frequency polygon

In this tutorial you will learn how to draw few very important and basic graphs in statistics. It is bit lengthy video that covers different scenarios like uniform classes, varying width classes, continuous classes etc. It is a must watch video for every beginner to intermediate level of student of statistics. This video covers the following graphs:

  • Bar graph
  • Histogram
    • Uniform width
    • Varying width
  • Frequency polygon 

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 6 appeared first on Mathemafia.

]]> Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 5 https://mathemafia.com/class-9-chapter-14-statistics-exercise-14-3-question-5/ Sun, 17 Jan 2021 15:44:25 +0000 http://sh016.global.temp.domains/~mathemaf/?p=4916 Question 5: The following table gives the life times of 400 neon lamps: (i) Represent the given information with the help of a histogram. (ii) Howmanylampshavealifetimeofmorethan700hours? Question 4 Question 6

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 5 appeared first on Mathemafia.

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Question 5: The following table gives the life times of 400 neon lamps:

(i) Represent the given information with the help of a histogram. (ii) Howmanylampshavealifetimeofmorethan700hours?

Question 4
Question 6

Statistics – Bar graph, Histogram & Frequency polygon

In this tutorial you will learn how to draw few very important and basic graphs in statistics. It is bit lengthy video that covers different scenarios like uniform classes, varying width classes, continuous classes etc. It is a must watch video for every beginner to intermediate level of student of statistics. This video covers the following graphs:

  • Bar graph
  • Histogram
    • Uniform width
    • Varying width
  • Frequency polygon 

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 5 appeared first on Mathemafia.

]]> Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 4 https://mathemafia.com/class-9-chapter-14-statistics-exercise-14-3-question-4/ Sun, 17 Jan 2021 15:44:21 +0000 http://sh016.global.temp.domains/~mathemaf/?p=4915 Question 4: The length of 40 leaves of a plant are measured correct to one millimetre, and the obtained data is represented in the following table: (i) Draw a histogram to represent the given data. (ii) Is there any other…

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 4 appeared first on Mathemafia.

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Question 4: The length of 40 leaves of a plant are measured correct to one millimetre, and the obtained data is represented in the following table:

(i) Draw a histogram to represent the given data.

(ii) Is there any other suitable graphical representation for the same data?

(iii) Is it correct to conclude that the maximum number of leaves are 153 mm long? Why?

Question 3
Question 5

Statistics – Bar graph, Histogram & Frequency polygon

In this tutorial you will learn how to draw few very important and basic graphs in statistics. It is bit lengthy video that covers different scenarios like uniform classes, varying width classes, continuous classes etc. It is a must watch video for every beginner to intermediate level of student of statistics. This video covers the following graphs:

  • Bar graph
  • Histogram
    • Uniform width
    • Varying width
  • Frequency polygon 

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 4 appeared first on Mathemafia.

]]> Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 3 https://mathemafia.com/class-9-chapter-14-statistics-exercise-14-3-question-3/ Sun, 17 Jan 2021 15:44:18 +0000 http://sh016.global.temp.domains/~mathemaf/?p=4914 Question 3: Given below are the seats won by different political parties in the polling outcome of a state assembly elections: (i) Draw a bar graph to represent the polling results. (ii) Which political party won the maximum number of…

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 3 appeared first on Mathemafia.

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Question 3: Given below are the seats won by different political parties in the polling outcome of a state assembly elections:

(i) Draw a bar graph to represent the polling results.

(ii) Which political party won the maximum number of seats?

Question 2
Question 4

Statistics – Bar graph, Histogram & Frequency polygon

In this tutorial you will learn how to draw few very important and basic graphs in statistics. It is bit lengthy video that covers different scenarios like uniform classes, varying width classes, continuous classes etc. It is a must watch video for every beginner to intermediate level of student of statistics. This video covers the following graphs:

  • Bar graph
  • Histogram
    • Uniform width
    • Varying width
  • Frequency polygon 

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 3 appeared first on Mathemafia.

]]> Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 2 https://mathemafia.com/class-9-chapter-14-statistics-exercise-14-3-question-2/ Sun, 17 Jan 2021 15:44:15 +0000 http://sh016.global.temp.domains/~mathemaf/?p=4913 Question 2: The following data on the number of girls (to the nearest ten) per thousand boys in different sections of Indian society is given below. (i) Represent the information above by a bar graph. (ii) In the classroom discuss…

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 2 appeared first on Mathemafia.

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Question 2: The following data on the number of girls (to the nearest ten) per thousand boys in different sections of Indian society is given below.

(i) Represent the information above by a bar graph.

(ii) In the classroom discuss what conclusions can be arrived at from the graph.

Question 1
Question 3

Statistics – Bar graph, Histogram & Frequency polygon

In this tutorial you will learn how to draw few very important and basic graphs in statistics. It is bit lengthy video that covers different scenarios like uniform classes, varying width classes, continuous classes etc. It is a must watch video for every beginner to intermediate level of student of statistics. This video covers the following graphs:

  • Bar graph
  • Histogram
    • Uniform width
    • Varying width
  • Frequency polygon 

Chapter 14 – Statistics

Mathemafia Logo - 75 px=>  Introduction to Statistics – Must watch tutorial  

​

Exercise 14.1

Question 1 & 2

Mathemafia Logo - 75 px=>  Bar Graph, Histogram, Frequency Polygon in Statistics  

Mathemafia Logo - 75 px=>  Measures of Central Tendency  

Examples

Example 1 & 2

Example 3 & 4

Example 5 & 6

Example 7

Example 8

Example 9

Example 10 & 11

Example 12 & 13

Example 14 & 15

Exercise 14.2

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.3

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Exercise 14.4

Question 1 & 2

Question 3 & 4

Question 5 & 6

Mathemafia Logo - 75 px=>  Statistics quiz – Class 9  

The post Class 9 | Chapter 14 | Statistics | Exercise 14.3 | Question 2 appeared first on Mathemafia.

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