a student wants to check six websites. four of the websites are social and two are school - related. after…

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? 0.042 0.267 0.533 0.667

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? 0.042 0.267 0.533 0.667

Answer

Answer:

B. 0.267

Explanation:

Step1: Calculate probability of first - social

The probability of checking a social website first is $\frac{4}{6}$ since there are 4 social websites out of 6 total websites.

Step2: Calculate probability of second - school - related

After checking a social website first, there are 5 websites left. The probability of checking a school - related website second is $\frac{2}{5}$ since there are 2 school - related websites out of the remaining 5.

Step3: Calculate combined probability

The probability of both events happening is the product of the probabilities of each event. So $P=\frac{4}{6}\times\frac{2}{5}=\frac{8}{30}\approx0.267$.