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28 August, 03:37

Suppose a normal distribution has a mean of 12 and a standard deviation of 4

A value of 18 is how many standard deviations away from the mean?

A - 2

B - 1.5

C 1.5

D 2

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Answers (1)
  1. 28 August, 06:39
    0
    The correct answer is C. 1.5

    Step-by-step explanation:

    To find this, first find the difference from the value to the mean.

    18 - 12 = 6

    Now that we have this, divide it by the size of a standard deviation to find how many it is away.

    6/4 = 1.5
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