Multiple Choice
If nothing is known about the shape of a distribution, what percentage of the observations fall within 3 standard deviations of the mean?
A) approximately 99.7%
B) at most 11%
C) approximately 0.3%
D) at least 89%
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q105: The calculator screens summarize a data set.
Q106: If a z-score is 0 or near
Q107: The amount spent on textbooks for the
Q108: If a sample has mean 0 and
Q109: The z-score uses the quartiles to identify
Q111: Both Chebyshevʹs rule and the empirical rule
Q112: At the U.S. Open Tennis Championship a
Q113: The sample variance and standard deviation
Q114: The data show the total number
Q115: Given a data set, which of the