# Question

A distribution of exam scores has a mean of μ = 78.

a. If your score is X = 70, which standard deviation would give you a better grade: σ = 4 or σ = 8?

b. If your score is X = 80, which standard deviation would give you a better grade: σ = 4 or σ = 8?

a. If your score is X = 70, which standard deviation would give you a better grade: σ = 4 or σ = 8?

b. If your score is X = 80, which standard deviation would give you a better grade: σ = 4 or σ = 8?

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