Question: In 2010, the average overall SAT score (Critical Reading, Math, and Writing) for college-bound students in the United States was 1509 out of 2400. Suppose
In 2010, the average overall SAT score (Critical Reading, Math, and Writing) for college-bound students in the United States was 1509 out of 2400. Suppose that40% of all high school graduates took this test, and suppose that900high school graduates are randomly selected from throughout the United States.
(a) Does the following random variable have an approximate binomial distribution?
the number of students who took the SAT
This is a binomial random variable.
This is not a binomial random variable.
If possible, give the values fornandp. (If not possible, enter IMPOSSIBLE.)
n= p=
(b) Does the following random variable have an approximate binomial distribution?
the scores of the900students on the SAT
This is a binomial random variable.
This is not a binomial random variable.
If possible, give the values fornandp. (If not possible, enter IMPOSSIBLE.)
n= p=
(c) Does the following random variable have an approximate binomial distribution?
the number of students who scored above average on the SAT
This is a binomial random variable.
This is not a binomial random variable.
If possible, give the values fornandp. (If not possible, enter IMPOSSIBLE.)
n= p=
(d) Does the following random variable have an approximate binomial distribution?
the amount of time it took the students to complete the SAT
This is a binomial random variable.
This is not a binomial random variable.
If possible, give the values fornandp. (If not possible, enter IMPOSSIBLE.)
n= p=
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