2010/14b. Neco
The marks of 30,000 pupils who sat for National
Common Entrance Examination in a particular year in Niger state is normally distributed with mean 60% and standard deviation 25%. Find the number of pupils who
(i) scored between 50% and 75%
(ii) scored greater than or equal to 80%
(iii) failed the examination if the pass mark is 40%?
In Mathematics
1 Answers Available
Asked by pelum8 on 18th April, 2023
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