In 2010, the average overall SAT score (Critical Reading, Math, and graduates to

Question

In 2010, the average overall SAT score (Critical Reading, Math, and graduates took this test, and Writing) for college-bound students in the United States was 1500 out of 2400. Suppo se that 35% of all igh sch suppose that 800 high school graduates are randomly selected from throughout the United States (a) Does the following random variable have an approximate binomial distribu the number of students who took the SAT O This is a binomial random variable. This is not a binomial random variable. If possible, give the values for n and p. (If not possible, enter IMPOSSIBLE.) (b) Does the following random variable have an approximate binomial distribution? the scores of the 800 students on the SAT O This is a binomial random variable. O This is not a binomial random variable If possible, give the values for n and p. (If not possible, enter IMPOSSIBLE.) (c) Does the following random variable have an approximate binomial distribution? the number of students who scored above average on the SAT O This is a binomial random variable. This is not a binomial random variable. If possible, give the values for n and p. (If not possible, enter IMPOSSIBLE.) (d) Does the following random variable have an approximate binomial distribution? the amount of time it took the students to complete the SAT O This is a binomial random variable - This is not a binomial random variable. If possible, give the values for n and p. (If not possible, enter IMPOSSIBLE.

Explanation / Answer

a)
this is a binomial
n = 800
p= 0.35

b)
not binomial
IMPOSSIBLE
IMPOSSIBLE

c)
not binomial
IMPOSSIBLE
IMPOSSIBLE

d)

not binomial
IMPOSSIBLE
IMPOSSIBLE

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