Mathematics is like music – Enjoy it!!!
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…
Read MoreQuestion 1: A survey conducted by an organisation for the cause of illness and death among the women between the ages 15 – 44 (in years) worldwide, found the following figures (in %): (i) Represent the information given above graphically.…
Read MoreExample 9: In a city, the weekly observations made in a study on the cost of living index are given in the following table: Draw a frequency polygon for the data above (without constructing a histogram). Example 8 Example 10…
Read MoreExample 8: Consider the marks, out of 100, obtained by 51 students of a class in a test, given in Table 14.9. Draw a frequency polygon corresponding to this frequency distribution table. Example 7 Example 9
Read MoreExample 7: A teacher wanted to analyse the performance of two sections of students in a mathematics test of 100 marks. Looking at their performances, she found that a few students got under 20 marks and a few got 70…
Read MoreExample 5: In a particular section of Class IX, 40 students were asked about the months of their birth and the following graph was prepared for the data so obtained: Observe the bar graph given above and answer the following…
Read MoreQuestion 9: A company manufactures car batteries of a particular type. The lives (in years) of 40 such batteries were recorded as follows: 2.6 3.5 2.5 3.5 4.6 3.0 3.7 2.3 3.2 4.4 3.4 3.2 3.9 3.8 3.2 3.2 2.2…
Read MoreQuestion 8: Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 6 2 3 5 12 5 8 4 8 10 3 4 12 2…
Read MoreQuestion 7: The value of π upto 50 decimal places is given below: 3.14159265358979323846264338327950288419716939937510 Make a frequency distribution of the digits from 0 to 9 after the decimal point. What are the most and the least frequently occurring digits? Question…
Read MoreQuestion 6: Three coins were tossed 30 times simultaneously. Each time the number of heads occurring was noted down as follows: 0 1 2 2 1 2 3 1 3 0 1 3 1 1 2 2 0 1 2…
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