sadams49 sadams49

07-11-2022
Mathematics

contestada

The mean score for freshmen on an aptitude test at a certain college is 570, with a standard deviation of 40. Assume the means to be measured to any degree of accuracy. What is the probability that two groups selected at random, consisting of 54 and 40 students, respectively, will differ in their mean scores by-
(a) more than 13 points?
(b) an amount between 2 and 7 points?

Respuesta :

Otras preguntas

PLEASE HELP ME The cost, C, to produce b baseball bats per day is modeled by the function C b. = 0.06b2 – 7.2b + 390. What number of bats should be produced to

What component of the circulatory system is at the tissue level? a. white blood cell b. blood c. heart d. hemoglobin

For which interval does this quadratic inequality hold true? 6x − x2 − 8 > 0 a. (1, 3) b. (2, 4) c. (3, 5) D(4, 6)

In the United States, 13 out of every 20 cans are recycled. What percent of cans are recycled?

Ellie wants to take up an activity that plays to her strengths. She has found that her best skill is her coordination. Which of the following activities would b

In a certain county, the number of charter schools is 4 less than twice the number of alternative schools. We know that there are 48 charter schools in the coun

If the root proto- means "early or first," which word means "the study of culture prior to its earliest recording"? 1. protohistory 2. prototype 3. protoplasm

Which set of resources is likely to be most useful in analyzing a period-specific novel? thesaurus, general dictionary, glossary of historical terms encyclopedi

What body systems does angelman syndrome affect?

Which describes a constant in an experiment? a. the variable changed by the experimenter b. the quantity that must remain the same d. the variable that changes