Students taking an achievement test receive separate scores for the math and verbal sections of the test. The linear model below can be used to predict a student's verbal score, y, based on the student's math score, x. y = 0.4433x + 307.68

What does the slope of this equation mean in terms of the context of the problem?

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?

In a 45-45-90 right triangle, what is the ratio of the length of one leg to the length of the other leg? а . 1: 2 в. 2: 1 с. 2: 1 d. 1: 1

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?