Abox contains seven action, six comedies, eight dramas, and five science fiction films. find the probability of choosing a comedy, putting it back, a science fiction, putting it back and then choosing a comedy.

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

The answer is : 63explanation 60 times 0.05360+363