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asambeis [7]
3 years ago
7

A data set has a mean of 720 and a standard deviation of 6. which is closest to the z-score for an element of this data set with

a value of 709
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
7 0
Mean = u = 720
Standard deviation = s = 6
Data Value = x = 709

The formula to calculate the z score is:

z= \frac{x-u}{s}

Using the values, we get:

z= \frac{709-720}{6} \\  \\ 
z=-1.83

Thus the z score for the data value will be -1.83. 
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