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Consider the following frequency distribution table, which gives the weights of 38 students of a class.

Find the probability that the weight of a student in the class lies in the interval $46 − 50$ .

Give two events in this context, one having probability 0 and the other having probability 1.

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338, 75 k g, 30 k g

338, 70 k g, 30 k g

538, 75 k g, 30 k g

538, 75 k g, 30 k g

answer is A.

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Detailed Solution

It is given that, a table of data that gives the weight of 38 students.
Question Image

We have to find the probability that the weight of a student in the class lies in the interval

46 − 50

.
The total number of students is 38.
The number of students that lies in the interval of 46 – 50 kg is 3.
The probability that the weight of student lies in the interval 46 – 50 kg is given by,

= 338

The probability that the weight of student is above 75 kg is given by,

038 = 0

The probability that the weight of student is above 30 kg is given by,

3838 = 1

Hence, the required answer is

338, 75 k g, 30 k g

.
Hence, option 1 is correct.

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