Which mathematical sentence can be used to calculate the probability of selecting a student who wants the option to keep studying online or is a boy. Our table shows the option to study on Online girls. It’s 10 boys are three and the road total is 13. Want the option to keep studying on mine is girls five boys seven and the road total is 12 column total is 15 boys 10 total 25 so would your answer be 3/25 or 13/25+10/25-3/25 or would it be 13/25×10/25 or would it be 13/25+10/25

1 answer

The probability of selecting a student who wants the option to keep studying online or is a boy can be calculated using the formula:

P(option to study online or is a boy) = P(option to study online) + P(is a boy) - P(option to study online and is a boy)

From the information given:

P(option to study online) = (5 girls + 7 boys) / 25 total students = 12/25
P(is a boy) = 10 boys / 25 total students = 10/25
P(option to study online and is a boy) = 3 boys / 25 total students = 3/25

Therefore, the probability of selecting a student who wants the option to keep studying online or is a boy is:

P(option to study online or is a boy) = 12/25 + 10/25 - 3/25
P(option to study online or is a boy) = 19/25

So the correct answer is 19/25.