Which of the following regression equations best fits the data shown below?
х
у
0.25
.5
-
3
0
-1
1.9
W N-

A. y =2.75 •3.06^x
B. y = 3.80•2.01^x
C. y = 4.40• 3.01^x
D. y = 4.04 -2.31^x

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?