In a sample of 1000 cases, the mean of a certain test is 14 and S.D is 2.5. Assuming the distribution to be normal, find
(1) how many students score between 12 and 15?
(2) How many score above 18?
(3) how many score below 8?
(4) how many score 16?
The answer to your question is provided below
Need a fast expert's response?
and get a quick answer at the best price
for any assignment or question with DETAILED EXPLANATIONS!