questions on probability

Question 3: Refer to Example 5, Section 14.4, Chapter 14. Find the probability that a student of the class was born in August. Question 2 Question 4

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Question 2: 1500 families with 2 children were selected randomly, and the following data were recorded: Compute the probability of a family, chosen at random, having (i) 2 girls (ii) 1 girl (iii) No girl Also check whether the sum…

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Question 1: In a cricket match, a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary. Class 9 | Home Question 2

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Example 10: Fifty seeds were selected at random from each of 5 bags of seeds, and were kept under standardised conditions favourable to germination. After 20 days, the number of seeds which had germinated in each collection were counted and…

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Probability In this tutorial, you will learn about the basics of probability and how we calculate it. Primarily probability is categorized into: Theoretical probability Experimental probability In this video, you will also learn about the following topics: Trial Outcome Favourable…

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Example 9: Consider the frequency distribution table (Table 14.3, Example 4, Chapter 14), which gives the weights of 38 students of a class. (i) Find the probability that the weight of a student in the class lies in the interval…

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Example 8: An insurance company selected 2000 drivers at random (i.e., without any preference of one driver over another) in a particular city to find a relationship between age and accidents. The data obtained are given in the following table:…

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Example 7: The percentage of marks obtained by a student in the monthly unit tests are given below: Based on this data, find the probability that the student gets more than 70% marks in a unit test. Example 6 Example…

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Example 6: A tyre manufacturing company kept a record of the distance covered before a tyre needed to be replaced. The table shows the results of 1000 cases. If you buy a tyre of this company, what is the probability…

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Example 5: The record of a weather station shows that out of the past 250 consecutive days, its weather forecasts were correct 175 times. What is the probability that on a given day it was correct? What is the probability…

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