ProbabilityMedium
Question
15 coupons are numbered 1, 2, 3, ....... 15 respectively. 7 coupons are selected at random one at a time with replacement. The probability that the largest number appearing on a selected coupon is 9 is -
Options
A.
B.
C.
D.
Solution
Total cases = 157
7 coupons are selected such that largest number on a selected coupon is 9. Fav. cases = 97 - 87
so required probability =
7 coupons are selected such that largest number on a selected coupon is 9. Fav. cases = 97 - 87
so required probability =
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