Mathematics, 21.04.2021 23:40 paulesparsa6
In a county, Algebra students' ages follow a skewed
distribution with a mean of 16 years old and a standard
deviation of 3 years. 200 students are randomly selected.
The following statements about the sampling distribution of
the sample mean age can be made.
I. The mean of the sampling distribution is
approximately 9 years.
II. The shape of the sampling distribution is
approximately normal.
III. The standard deviation of the sampling distribution
is equal to 0.21 years.
Which of the statements are true
Answers: 3
Mathematics, 21.06.2019 17:00
The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.
Answers: 3
Mathematics, 21.06.2019 18:00
Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items
Answers: 1
Mathematics, 21.06.2019 22:20
Jimmy can run 3.5 miles in 20 minutes. how far can ne run in one hour and ten minutes?
Answers: 1
In a county, Algebra students' ages follow a skewed
distribution with a mean of 16 years old and a...
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