Question

What is the Probability of a number selected from a number 1,2,3,4,...............20 so that it is a prime number?

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Answer 1

Answer:

2/5

Step-by-step explanation:

total prime numbers in 1 to 20 are 8(2,3,5,7,11,13,17,19)

probability is 8/20=2/5

Answer 2

Answer:

total outcome is 20

and the prime numbers are

1,2,3,5,7,11,13,17,19

now

20÷9=2.2

because it is 2.2 will take 2 aprox .