A Sample of Experienced Typists Revealed That Their Mean Typing

question 29

Multiple Choice

A sample of experienced typists revealed that their mean typing speed is 87 words per minute and the median typing speed is 73 words per minute. The standard deviation of typing speed is 16.9 words per minute. What is the Pearson coefficient of skewness?

• A)−2.5
• B)−4.2
• C)+4.2
• D)+2.5

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Definitions:

Initial Investment

The amount of money used to start a project, purchase an asset, or invest in a financial venture.

Coefficient of Variation

A standardized measure of dispersion of a probability distribution or frequency distribution, often expressed as a percentage.

Variance

A measure of the dispersion or spread of a set of data points around their mean value.

Minimin Strategy

A decision rule used in scenarios involving uncertainty, where the decision maker aims to minimize the potential for the worst-case scenario.