SOLUTION: the test scores in Mrs. kaste's Math b class are normally distributed with a mean of 85 and a standard deviation of 5. between what two scores would 95.4 percent of the scores fall

Question 83665: the test scores in Mrs. kaste's Math b class are normally distributed with a mean of 85 and a standard deviation of 5. between what two scores would 95.4 percent of the scores fall?
75-100
80-90
75-95
85-90
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
the test scores in Mrs. kaste's Math b class are normally distributed with a mean of 85 and a standard deviation of 5. between what two scores would 95.4 percent of the scores fall?
75-100
80-90
75-95
85-90
---------
It appears you are expected to find these answers based on the
standard normal distribution which says "approximately 95% of a
normallly distributed population will lie within 2 standard
deviations of the mean".
If that is what you are doing your anser is:
2 standard deviations to the left of the mean is a score of 75;
2 standard deviations to the right of the mean is a score of 95.
=============
Cheers,
Stan H.
RELATED QUESTIONS
6. The test scores in MRs. Kaste's MAth B class are normally distributed with a mean of... (answered by stanbon)

A math teacher gives two different tests to measure students� aptitude for math. Scores... (answered by ikleyn)

I need help with this question. The scores for math test #3 were normally distributed. If (answered by Fombitz)

Score in college admission test has mean score of 70 and a standard deviation of 10.... (answered by Boreal)

math exam scores in a MATH 1030 class is approximately normally distributed with mean 86... (answered by Boreal)

6) The test scores in Mrs. Kaste's Math B class are normally distrubuted with a mean of... (answered by nycsub_teacher)

Test scores on a math exam are normally distributed with a mean of 82 and a standard... (answered by ewatrrr)

5 In exercises 5-8 assume that SAT scores are normally distributed with mean u=1518 and... (answered by tommyt3rd)

You just have received your score in a language aptitude test. If your score was 82 and... (answered by solver91311)