Mr. Cooper recently gave a test to his 50 student history class. The scores were normally...

Mr. Cooper recently gave a test to his 50 student history class. The scores were normally distributed with a mean of 75 and a standard deviation of 7.

1) What percentage of students scored higher than 85?% (Round to two decimal places)

2) What percentage of students scored between 73 and 80?% (round to two decimal places)

3) 75% of the students scored higher than what score? (Round to two decimal places)

4) 30% of students scored lower than what score? (Round to two decimal places)

5) Approximately how many students got a C (70) or higher on the exam? nothing

6) Approximately how many students got an A (90+) on the exam?

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Expert Solution

orchestra answered 1 year ago

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