Answered

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A normal distribution of data has a mean of 15 and a standard deviation of 4. How many standard deviations from the
mean is 25?

•0.16
•0.4.
•2.5
•6.25

Sagot :

nourmaali16

Answer:

its 2.5 i hope this helps!

Step-by-step explanation:

The number of standard deviations at which the distribution differs from the given mean is; 2.5

How to solve the Central Limit Theorem?

We are given;

Mean; μ = 15

Standard deviation; σ = 4

Sample mean; x' = 25

Formula for z-score is;

z = (x' - μ)/σ

Thus;

z = (25 - 15)/4

z = 2.5

Read more about Central Limit Theorem at; https://brainly.com/question/25800303

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