Register
Mark earned a 64 on his last science quiz. If Mark’s z-score was -2.8 and the standard deviation was 10, find the mean grade on the quiz.
173k views
9 votes
Mark earned a 64 on his last science quiz. If Mark’s z-score was -2.8 and the standard deviation was 10, find the mean grade on the quiz.

User Tftd
by
7.4k points

1 Answer

3 votes

Answer:

he score is 2.15 standard deviations above the mean.

Explanation:

User Torgheh
by
7.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

8.8m questions

11.4m answers

Other Questions

What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
Write words to match the expression. 24- ( 6+3)
Link Copied!