Multiple Choice
A frequency distribution has a mean of 200 and a standard deviation of 20. The class limits for one class are 220 up to 240. What are the standard normal z-statistics for the class limits?
A) −20 and 20
B) −2.0 and −1.0
C) 200 and 220
D) 1.0 and 2.0
Correct Answer:
Verified
Correct Answer:
Verified
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