Question

A number is chosen at random from a first 25 natural numbers,find the probability that the number is not a prime

Answer 1

Answer:

9/25

Step-by-step explanation:

total prime nos. in 1 to 25 natural numbers are:

2,3,5,7,11,13,17,19,23=9

Answer 2

answer : 13/25

step wise explanation:

the prime number between 1 to 25 are as follows= 2 , 3 , 5 , 7 , 11 , 13 ,17 , 19 and 23 .

total outcome = 25

event A : the probability of not getting prime number from a first 25 natural numbers are (25-9) = 13 .

therefore, P(A) = number of oucome

total number of oucome

= 13

25

hope this will help u....