on the last test, the class had an average of 54.5 with a standard deviation of 8.0. What is the lowest grade the student could have made to receive at least a C. That is be in the top 70%. As Round your answer to 1 decimal place.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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Question
An instructor grades on a curve.
A
40%
D
20%
20%
F
10%
Directions
10%
10% receive an A; 20% receive a B; 40% receive a C; 20% receive a D; 10% receive an F
On the last test, the class had an average of 54.5 with a standard deviation of 8.0.
What is the lowest grade the student could have made to receive at least a C. That is be in the top 70%. As
Round your answer to 1 decimal place.
1. Determine the answer to the question. Explain how you obtained your answer and state the answer.
Transcribed Image Text:An instructor grades on a curve. A 40% D 20% 20% F 10% Directions 10% 10% receive an A; 20% receive a B; 40% receive a C; 20% receive a D; 10% receive an F On the last test, the class had an average of 54.5 with a standard deviation of 8.0. What is the lowest grade the student could have made to receive at least a C. That is be in the top 70%. As Round your answer to 1 decimal place. 1. Determine the answer to the question. Explain how you obtained your answer and state the answer.
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