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Question
Rohit collected the data regarding weights of students of his class and prepared the following table:
| Weight (in kg) | 44 – 47 | 48 – 51 | 52 – 55 | 56 – 60 |
| Number of Students | 3 | 5 | 25 | 7 |
A student is to be selected randomly from his class for some competition. The probability of selection of the student is highest whose weight is in the interval ______.
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Solution
A student is to be selected randomly from his class for some competition. The probability of selection of the student is highest whose weight is in the interval 52 – 55.
We know that,
Probability = `"Number of favourable outcomes"/"Total number of possible outcomes"`
∴ To make the probability highest, we have to take the interval where number of students, i.e. possible outcomes are highest.
Here, the probability is highest whose weight is in the interval
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