The mean score for freshmen on an aptitude testat a certain college is 540, with a standard deviation of50. Assume the means to be measured to any degreeof accuracy. What is the probability that two groupsselected at random, consisting of 32 and 50 students, respectively, will differ in their mean scores by

Measures of the angle of r, 31 s (x+4) t (3x+9)

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212