Mathematics, 24.11.2020 01:50 molinaemily009

On a unit test in a statistics class, the teacher determines that the mean test grade was 77.5 with a standard deviation of 5.2. One test grade has a z-score of 2.4. Which of the following statements gives the best interpretation of this z- score?

A. This student's test grade was higher than 2.4% of the other students' test grades.

B. This student's test grade was 2.4 standard deviations above the mean test grade.

C. This student's test grade was 2.4 standard deviations below the mean test grade.

D. The student's test grade was lower than 2.4% of the other students' test grades.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 15:40, silverdays566

Which of the following represents the zeros of f(x) = 6x3 − 31x2 + 4x + 5? −5, one third , one half 5, − one third , one half 5, one third , − one half 5, one third , one half

Answers: 1

continue

Mathematics, 21.06.2019 22:00, huangjianhe135

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

Answers: 1

continue

Mathematics, 22.06.2019 00:00, chitteshchandra56

This circle is centered at the origin, and the length of its radius is 6. what is the circle's equation? a. x^2+y^2=36 b x^2+y^2=6 c x+y=36 d x^6+y^6=1

Answers: 2

continue

Mathematics, 22.06.2019 05:30, johnsont8377

Find the area of the trapezoid a. 150 ft^2 b. 300 ft^2 c. 45 ft^2 d. 75 ft^2

Answers: 1

continue

You know the right answer?

On a unit test in a statistics class, the teacher determines that the mean test grade was 77.5 with...