Question: A set of data is normally distributed with a mean of 100 and standard deviation of 25. Approximately what percent of the data would you

  1. A set of data is normally distributed with a mean of 100 and standard deviation of 25. Approximately what percent of the data would you expect to be between 75 and 100?
  2. If X~N(350,4^2) then the standard deviation equals

a) 16

b)350

c)4

D)256

d)none of the above

  1. The standard deviation of a sample of data is 4. The variance of this sample is

a)16

b)4

c)2

d)256

e)none of the abve

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