Question

number is chosen at random from 1 to 30 find the probability that it is a prime number

Answer 1

prime numbers between 1 to 30
2
3
5
7
11
13
17
19
23
29
total numbers are 10
probability of a prime no. is 10/30
= 1/3 answer

Answer 2

Hey !

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First of all what is a prime number : The number divisible by only itself and 1 .

Prime numbers between 1 and 30 are : 2 ,3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 , 29.

Total prime numbers are 10

Probability = possible outcomes / total no. of outcomes

= 10 / 30

= 1/3

# Hope it helps #