In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. If a child is selected at random, the probability that he/she does not like to eat potato chips is :
a. 0.25
b. 0.50
c. 0.75
d. 0.80

Solution:

It is given that

Total number of survey children’s age from 19-36 months n(S) = 364

It was found that 91 liked to eat potato chips

Number of children who do not like potato chips N (E) = 364 - 91 = 273

We know that

Probability that he/she does not like to eat potato chips = n(E)/ n(S)

Substituting the values

= 273/ 364

= 0.75

Therefore, the probability that he/she does not like to eat potato chips is 0.75.

✦ Try This: In a survey of 258 children aged 12-24 months, it was found that 100 liked to eat potato chips. If a child is selected at random, the probability that he/she does not like to eat

potato chips is :

☛ Also Check: NCERT Solutions for Class 9 Maths Chapter 14

NCERT Exemplar Class 9 Maths Exercise 14.1 Problem 26

In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. If a child is selected at random, the probability that he/she does not like to eat potato chips is : a. 0.25, b. 0.50, c. 0.75, d. 0.80

Summary:

In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. If a child is selected at random, the probability that he/she does not like to eat potato chips is 0.75

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