A Crate Rests on a Horizontal Surface and a Woman

question 21

Multiple Choice

A crate rests on a horizontal surface and a woman pulls on it with a 10-N force. Rank the situations shown below according to the magnitude of the normal force exerted by the surface on the crate, least to greatest.

• A) 1, 2, 3
• B) 2, 1, 3
• C) 2, 3, 1
• D) 1, 3, 2
• E) 3, 2, 1

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Definitions:

Normal Curve

Another term for a normal distribution, characterized by its bell-shaped curve where most observations cluster around the central peak and the probabilities for values further away from the mean taper off equally in both directions.

Mean

The arithmetic average of a set of values, found by dividing the sum of all values by the number of values.

Median

The midpoint in a set of values, such that 50% of the cases in a distribution fall below the median and 50% fall above it.

Mode

The most frequently occurring score in a distribution.