The Two-Way Table Summarizes Data from the Human Resource Department

question 47

Multiple Choice

The two-way table summarizes data from the human resource department at a university: New Hires $\begin{array}{l|cc|l} & { Tenure}&{ Adjunct } & \text { Total } \\\hline \text { Men } & 15 & 20 & 35 \\\text { Women } & 15 & 20 & 35 \\\hline \text { Total } & 30 & 40 & 70\end{array}$ What is the probability (rounded to two decimal places) that a randomly selected new hire is a tenure-track woman?

• A)0
• B)0.21
• C)0.43
• D)0.15
• E)0.50

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Definitions:

Sample Mean

The average value of a sample set of numbers, calculated as the sum of all the values divided by the number of values.

Sampling Distribution

The distribution of probabilities for a particular statistic based on a random sample, which is used to infer characteristics of the population.

Miles Per Gallon

A measure of fuel efficiency in vehicles, indicating the distance in miles a vehicle can travel per gallon of fuel consumed.

Simple Random Sample

A segment of a statistical group where every member possesses an identical probability of selection.