Question

A student wants to check six websites. Four of the websites are social and two are school-related. After checking just two sites, she has to leave for school. What is the approximate probability that she checked a social website first, then a school-related website?.

Answer 1

The approximate probability that she checked a social website first, then a school-related website is known to be 0.267

What is the check about?

In the above scenario, there are:

Total number of websites = 6

Number of school websites = 2

Number of social websites = 4

When she checks the social website first, the probability of checking a social website  is said to be 4/6

If one social website is checked, she is left with 3 social website and 2 school websites. So now the total number of websites will be 5.

The probability that the 2nd website that she checks is school related will be = 2/5

Therefor, the approximate probability that she checked a social website first, then a school-linked website is =

4/6 x 2/5

= 0.267

Therefore, the answer will be  0.267 probability level.

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