Question

About 10% of the population of a large country is math phobic. If two people are randomly selected what is the probability both are math phobic? And hat is the probability that at least one is math phobic?

Any way to do this on stat crunch?

Answer 1

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

Both = .10 * .10 = ?

"at least one" indicates either one or both.

One = .10 * (1-.10) = ?

Either-or probabilities are found by adding the individual probabilities.

Answer 2

States* I think- I don't know what you were trying to spell-