A warje population as a bell shaped distribution with a mean of 200 and a standard deviation of 40 which 1 of the following meas
urements has AZ score of 2.5?
100
300
280
120
1 answer:
Answer:
300
(second answer choice)
Step-by-step explanation:
Recall that the Z-distribution is defined as :
and therefore, to obtain a Z = 2.5 when the mean value =200, and the standard deviation = 40 , we solve for "X":
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