Question

What is the probability that a number selected from the number 1,2,3,4,5,...,16 is a prime number

Answer 1

7/16 because from 1 to 16 ,7 prime numbers exists

Answer 2

Hi there!
Here's the answer:

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From the given data,
Sample space S = {1,2,3,4,……,16}

n(S) = No. of numbers in set S
n(S) = 16

Let E be the Event of selecting a prime no. from S
E= {2,3,5,7,11,13}

n(E) = No. of prime Numbers in set S ( or ) no. of possible cases for Event E
n(E) = 6

¶ Probability of an Event = (Possible Outcomes for that Event)/(Total outcomes)

•Probability = n(E) / n(S)

•°• Required Probability = 6/16 = 3/8

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:)
Hope it helps