Multiple Choice
A frequency distribution has a mean of 100 and a standard deviation of 20. The class limits for one class are 50 up to 60. What are the standard normal z-statistics for the class limits?
A) −20 and 20
B) −2.5 and −2.0
C) 2.0 and 2.5
D) −50 and −40
Correct Answer:
Verified
Correct Answer:
Verified
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