Suppose That the Average Song Length in America Is 4

question 41

Multiple Choice

Suppose that the average song length in America is 4 minutes with a standard deviation of 1.25 minutes. It is known that song length is not normally distributed. Find the probability that a single randomly selected song from the population will be longer than 4.25 minutes. Round to the nearest thousandth.

• A)0.421
• B)0.079
• C)This probability cannot be determined because we do not know the distribution of the population.
• D)0.579

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Definitions:

Union

An organized association of workers formed to protect and further their rights and interests; a labor union.

Individual Probabilities

The likelihood of specific outcomes for individual events.

Probability Tree

A diagram that represents the possible outcomes of a series of events, showing the probability of each outcome in a branching format.

Probability Tree

A graphical representation used to illustrate all possible outcomes of a sequence of events and their probabilities.