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3 years ago

The grades on a history midterm at Almond are roughly symmetric with y = 85 and o = 2.0.

Mathematics

1 answer:

Alik [6]3 years ago

7 0

Answer:

The z-score for Michael's exam grade is 0.50

Step-by-step explanation:

Data

mean, μ = 85

standard deviation, σ = 2.0

Michael's exam grade is the value of interest, x = 86

From definition, z-score is computed as follows:

Z = (x - μ)/σ

Z = (86 - 85)/2.0

Z = 0.50

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