Multiple Choice
Exam scores in a random sample of students were 0, 50, 50, 70, 70, 80, 90, 90, 90, 100. Which statement is incorrect?
A) The standard deviation is 29.61.
B) The data are slightly left-skewed.
C) The midrange and mean are almost the same.
D) The third quartile is 90.
Correct Answer:
Verified
Correct Answer:
Verified
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