DonQuixote
New member
- Joined
- Jun 6, 2016
- Messages
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Hey guys was wondering how to go about tackling this problem?
A statistics professor announces that 10% of the grades he gives are A's. The results of the final examination indicate that the mean score is 73 and the standard deviation is 6. What minimum score must a student obtain to receive an A?
Many thanks!
A statistics professor announces that 10% of the grades he gives are A's. The results of the final examination indicate that the mean score is 73 and the standard deviation is 6. What minimum score must a student obtain to receive an A?
Many thanks!