Question

The probability that 2 people chosen at random were born on the same day of the week

Answer 1

1/49

Number ofdays in a week=7

probability of any one day=1/7

probability that two people born on same day =1/7 x 1/7 =1/49

Answer 2

Given,

Number of people chosen randomly =2

To Find,

The probability that 2 people chosen at random were born on the same day of the week =?

Solution,

Total number of days in a week = 7

Probability of choosing a day from a week = 1 / 7

Therefore, the probability that 2 people chosen at random were born on the same day of the week = 1 / 7 * 1 / 7

The probability that 2 people chosen at random were born on the same day of the week = 1 / 49

Hence, the probability that 2 people chosen at random were born on the same day of the week is 1 / 49.