There are 20 pens in a package. ten of the pens are black, 8 are blue, and the rest are red.

which ratio represents the number of red pens to black pens?

1/10

1/5

4/5

5/1

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)

What is the 12th term of b(n)=-4-2(n-1)

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box