Question

cards marked with all 2 digit numbers are placed in the box and are mixed thoroughly one card is drawn at random find the probability that the number on the card is divisible by 10 a perfect square number of prime number less than 25

Answer 1

a.

$p(number divisible by 10) = \frac{9}{90} = 0.1$

b.

$p(aperfectsquarea ofprimenumberlessthan25) = \frac{3}{90} = 0.033$