A study revealed that 45 of college freshmen are male and that 18 of male freshmen earned college credits while still in high school.
Find the probability that a randomly chosen college freshman will be male and have earned college credits while still in high school.
A) 0.400 B) 0.027 C) 0.081 D) 0.530
Question 2
At the U.S. Open Tennis Championship a statistician keeps track of every serve that a player hits during the tournament. The lower quartile of a particular player's serve speeds was reported to be 88 mph.
Which of the following interpretations of this information is correct?
A) 75 of the player's serves were hit at speeds less than 88 mph.
B) 88 serves traveled faster than the lower quartile.
C) 25 of the player's serves were hit at 88 mph.
D) 75 of the player's serves were hit at speeds greater than 88 mph.
Palade's use of the pulse-chase method to study protein secretion
Coleman's parabiosis experiments revealed a satiety factor in wild-type mice that was absent or
Flipper tags have been extensively used in the study of penguin population dynamics.
Male giraffe mounting a female. Only dominant males are generally able to mate.
Hormonal control over male and female reproductive hormones