Apediatrician wants to determine the relation that may exist between a child's height and head circumference. she randomly selects 5 children and measures their height and head circumference. the data are summarized below. complete parts (a) through (f) below. height (inches), x 26.5 27.5 27 25 25.5 head circumference (inches), y 17.3 17.5 17.5 16.9 17.1 (a) treating height as the explanatory variable, x, use technology to determine the estimates of beta 0 and beta 1.

How many solutions does the nonlinear system of equations graphed below have?

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?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.