Saturday
December 20, 2014

Homework Help: statistics

Posted by StudentD on Wednesday, August 15, 2012 at 12:34pm.

In a psychology class of 100 students, test scores are normally distributed with a mean of 80 and a standard deviation of 5. Approximately what percentage of students have scores between 70 and 90?

A. 68%

B. 80%

C. 95%

D. 99%

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Statistics - 18. The Intelligence Quotient (IQ) test scores are normally ...
statistics - The test scores of students in a class test have a mean of 65 and ...
algebra 2 - Students at a high school all took the same English test. The scores...
Statistics - The scores for math test #3 were normally distributed. If 15 ...
statistics - Suppose a college's SAT scores are normally distributed with mean ...
Statistics - Suppose you administered an anxiety test to a large sample of ...
statistics - Suppose you administered an anxiety test to a large sample of ...
graduate statistics - A nursing professor was curious as to whether the students...
Analytical Skills - If your score on a statistics exam was 76 and the professor ...
Statistics - Students were given an exam with 300 multiple-choice questions. The...

Search
Members