The correlation coefficient rbetween an employee's age, x and yearly selary. y is 0.923.
What percent of the variation in yearly salaries can be explained by differences in the
employees ages?
31.7%
40.1%
85.2%
92.3 %

What is the absolute value of the complex number -4-sqrt2i

Describe a situation that you could represent with the inequality x< 17

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.