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BabaBlast [244]
4 years ago
8

Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.

6 and the standard deviation was 8.7. If 18 classes were selected at random, find the probability that the class average is less than 80.
A. 0.7427



B. 0.0396



C. 0.0235



D. 0.1730
Mathematics
1 answer:
Eduardwww [97]4 years ago
4 0
The answer is d 0.1730

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3 years ago
URGENT, PLEASE HELP! (3/5) -50 POINTS- !please no wrong answers for the points.! A) <img src="https://tex.z-dn.net/?f=y%20%3D%20
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