Question

What is the probability of picking a prime number and then picking a divisor of 32 Write your answer as a percentage .

Answer 1

The total number = 4 (1,2,3,4)

number of prime numbers= 2 (2,3)

number divisible by 32 = 3, (1,2,4)

`\text{Prb(prime numbes)}=(2)/(4)=(1)/(2)`
`\text{prb(number divisible by 32)=}(3)/(4)`

Hence the probability of picking a prime number and then a number divisible by 32 is

`(1)/(2)*(3)/(4)=(3)/(8)`

In percentage we have,

`(3)/(8)*100=(75)/(2)`

37.5%

Hence the probability in percentage is 37.5