Question

cards are numbered from 1 to 100 if one card is chooses at random what is the probability of the card chosen is a prime number greater than 50​

Answer 1

Answer:

$={1,2,3,4........100}

n(100)

A={97,61,67,83,93}

n(5)

P(A)=n(A)/n($)

=100/5

=20

The probability of card chosen is 20.

Answer 2

The probability that the card chosen is a prime number greater than 50 and less than 100 is equal to 1/10.

The total number of cards = 100

The total number of prime numbers between 50 to 100 = 10 {53, 59, 61, 67, 71, 73, 79, 83, 89, and 97}

The probability of getting a prime number between 50 to 100 = total number of prime numbers between 50 to 100/the total number of cars

= 10/100 = 1/10