Answered

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A data set has a mean of 42 and a standard deviation of 7.8 if an element in the set is 54 find its z-score

Sagot :

imranhafeez73

Answer:

mean=42

SD=7.8

X=54

Z=(X-u)/SD

Z=(54-42)/7.8=12/7.8

=1.54

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