Author: Anonymous

An IRS agent reviews tax returns. (1) She identifies mistakes made in calculations. (2) She also identifies errors intentionally made to lower the tax bill.  The first set of errors is likely to be random while the second set of errors is likely to be systematic.

Extra Essay Question. Used only if needed.

5.1 Identify the two spelling errors in the text above and correct them by giving the correct spelling of each word. (2)

Skewness in the distribution of data either to the right or to the left implies the inclusion of an extreme value in the data set.

The distribution of the following values: 7,    7,    7,    7,    7,   7,   7,    7 will generate a unimodal data distribution.

Given the following data set: 3.   6.   3,     4 ,   4,    4,  3,   1,   3, the range is = 4

You would expect the first SEC fractions would correspond to the

A knockdown mouse

After randomly selecting 1009 seniors and surveying each of them, a pollster reported that 54% within the margin of error of 3% preferred that their local drug store use robots to deliver medications to their homes. The range of values likely to contain the population parameter is = 51% and 54%.

Only normal data can generate a trimodal distribution.