According to Internet Retailer (2009),approximately ________ Percent of Adult U

question 30

Multiple Choice

According to Internet Retailer (2009) ,approximately ________ percent of adult U.S.Internet users shop online or research offline sales online.

• A) 25
• B) 60
• C) 65
• D) 85

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Definitions:

Standard Deviation

An indicator of the spread or variability among a set of numbers, showing the degree to which these numbers vary from their average.

Unbiased Estimates

Statistical estimates or predictions that are accurate on average over a number of samples.

Sample Size

The number of observations or data points used in a sample for the purposes of statistical analysis.

Mean Deviation

A measure of the average distance between each data point in a set and the mean of the data set, reflecting the dispersion or spread.