For a population with a mean of \mu= 100 and a standard deviation of \sigma=20, Find the X values. z = +.75.

Globokim8

Globokim8

Answered question

2021-02-05

For a population with a mean of μ=100 and a standard deviation of σ=20,
Find the X values.
z=+.75.

Answer & Explanation

tabuordy

tabuordy

Skilled2021-02-06Added 90 answers

If the Z-score is 0.75, find the value of the random variable X.
The following formula is used to determine the value of the random variable X if the Z-score is equal to 0.75:
Let X stand for the random variable with a population mean and standard deviation of 100 and 20, respectively.
That is, μ=100σ=20
The required value of X is, 
z=Xμσ 
0.75=X10020 
X100=0.75×20=15 
X=100+15=115 
If the Z-score is equal to 0.75, the random variable X will have the value of 115.

Jeffrey Jordon

Jeffrey Jordon

Expert2021-11-14Added 2605 answers

Answer is given below (on video)

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