Question

A game of number has cards marked with 11,13,15,17,...,41.a card drawn at random. find the probability that the number on the card drawn is :
i) a perfect cube
ii) Divisible by 3
iii) A prime number ​

Answer 1

Answer:

total of number (n) = 16

i ) ans for perfect cube :

first cube in this limit = 27

number of possible event = 1

probability = 1/16

ii ) ans for dividable by 3

expexted number = 15 , 21 , 27 , 33 , 39

number of possible event = 5

probability = 5/16

iii ) ans for prime number

expected number = 11, 13, 17, 19, 23, 29, 31, 37, 41

number of possible event = 9

probability = 9/16

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