An unbiased coin is tossed n times. The probability of getting at least one tail is p and the probability of at least two tails is q and p – q = 5/32

What is the value of p + q ?

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

Two dice each numbered from 1 to 6 are thrown together. Let A and B…

An urn contains one black ball and one green ball. A second urn contains one…

An urn contains one black ball and one green ball. A second urn contains one…

What is the most probable number of successes in 10 trials with probability of success…