3 years ago

Suppose that a normal distribution has a mean of 20 and a standard deviation of 4. What is the z-score of 13?

Mathematics

1 answer:

Papessa [141]3 years ago

5 0

Answer:

-1.75.

Step-by-step explanation:

The z-score = (n - m) / d where n is the value (13) m = mean and d = standard deviation.

= (13 - 20) / 4

= -1.75 (answer)

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