If a distribution is normal with μ = 50 and σ = 10, then what proportion of the scores will fall between 20 and 80?
A).3413
B).6826
C).9544
D).9974

Name: If a distribution is normal with μ = 50 and σ = 10, then what proportion of the scores will fall between 20 and 80? A).3413 B).6826 C).9544 D).9974
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Question

Quizplus · Accepted Answer

A normal distribution with μ = 50 and σ = 10 has 99.74% of scores falling within three standard deviations (30 points) from the mean, which covers the range from 20 to 80.

If a Distribution Is Normal with μ = 50 and σ