Wednesday
August 20, 2014

Homework Help: math

Posted by kevin on Sunday, March 28, 2010 at 7:51pm.

The mean score on a Math exam was 50% and the standard deviation was 10%. Assume the results were normally distributed.
(a) What percent of students earned a score between 50% and 70%?


(b) If 60 students took the exam, how many got a score between 50% and 70%?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

statistics-math - The mean score on a Math exam was 50% and the standard ...
statistics - For a particular sample of 50 scores on a psychology exam, the ...
stats - 2. A standardized exam was provided to all 3rd graders in Arizona ...
Stats - For a particular sample of 63 scores on a psychology exam, the following...
Stats - For a particular sample of 63 scores on a psychology exam, the following...
statistics - For a particular sample of 53 scores on a psychology exam, the ...
Can somehelp me with this ASAP plz?!?!?! Stats - For a particular sample of 63 ...
Stats - For a particular sample of 63 scores on a psychology exam, the following...
statistics - For a particular sample of 63 scores on a psychology exam, the ...
statistics - For a particular sample of 80 scores on a psychology exam, the ...

Search
Members