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Question
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 ______.
Options
0.25
0.50
0.75
0.80
Solution
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.
Explanation:
Total number of survey children’s age from 19 – 36 months, n(S) = 364.
In those of them 91 out of them liked to eat potato chips.
∴ Number of children who do not like to eat potato chips, n(E) = 364 – 91 = 273
∴ Probability that he/she does not like to eat potato chips = `(n(E))/(n(S)) = 273/364` = 0.75
Hence, the probability that he/she does not like to eat potato chips is 0.75.
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