Consider the Experiment of Tossing a Fair Coin Three Times

question 24

Multiple Choice

Consider the experiment of tossing a fair coin three times and observing the number of heads that result (X = number of heads) . What is the standard deviation for this distribution?

• A) 1.5
• B) 1.22
• C) .75
• D) .87

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Definitions:

Population Size

The total count of individuals or entities to be studied or observed in a given population.

Sum of Scores

The total value obtained by adding together all scores in a set of data.

Mode

The data point that is most frequently observed in a dataset.

Independents

Variables in a statistical model that are presumed to influence or predict the outcome of dependent variables.