Suppose That the Average Pop Song Length in America Is

question 25

Multiple Choice

Suppose that the average pop 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. Suppose a sample of 25 songs is
Taken from the population. What is the approximate probability that the average song length will
Be less than 3.5 minutes? Round to the nearest thousandth.

• A) 0.345
• B) 0.477
• C) 0.023
• D) 0.155

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Definitions:

Hematite

An iron oxide mineral that is one of the main ores of iron, recognized by its reddish-brown color.

Magnetite

A naturally occurring magnetic mineral, consisting of iron oxide, often mined as an iron ore.

Perpendicular Directions

This refers to two lines or directions that intersect at a 90-degree angle.

Nonperpendicular Directions

Nonperpendicular directions refer to lines or paths that do not intersect at a right angle, diverging from orthogonality in a spatial relationship.