Question

one is asked to say a two digit number
a)what is the probability of its
being 19
b)what is the probability of its
being a perfect square​

Answer 1

If one is asked to say a two digit no.
he may say from 10-99 so the
Total outcomes are = 90
a) no. Of outcomes to being 19 = 1
So Probability would be = 1/90
b) sample set of being perfect square numbers are = 16,25,36,49,64,81
So no.of outcomes = 6
Probability would be = 6/90
= 1/15

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Answer 2

Step-by-step explanation:

Number of 2 digit numbers (10 - 99) = 90

a) The probability of its being 19 = 1/90

b) Two digits Perfect square numbers are 16, 25, 36, 49, 64, 81

So number of perfect squares are 6

So, the probability of its being a perfect square = 6/90 = 1/15.