1 The heights of 9 students of a class are as follows (in cm): 155, 160, 145, 150, 147, 152, 144 148
a. Find the average height of the students in this class.

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?