Essay
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Chebyshev's theorem is used to approximate the proportion of observations for any data set,regardless of the shape of the distribution.Assume that a distribution has a mean of 255 and standard deviation of 20.
-Approximately what proportion of the observations is between 215 and 295?
Correct Answer:

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k = 2;hence at least...View Answer
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Correct Answer:
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