The Table Below Shows the Relationship Between the Number of Times

question 133

Multiple Choice

The table below shows the relationship between the number of times you get your car washed each month and your total monthly benefit from car washes. Each car wash costs $15. $$\begin{array} { | c | c | } \hline \begin{array} { c } \text { Number of } \\\text { Car Washes } \\\text { Per Month }\end{array} & \begin{array} { c } \text { Total Monthly } \\\text { Benefit from } \\\text { Car Washes }\end{array} \\\hline 0 & \$ 0 \\\hline 1 & \$ 20 \\\hline 2 & \$ 36 \\\hline 3 & \$ 48 \\\hline 4 & \$ 56 \\\hline 5 & \$ 60 \\\hline\end{array}$$ What is the marginal cost of the 5^th car wash each month?

• A)$15
• B)$14
• C)$12
• D)$4

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Definitions:

Probability

An evaluation of event occurrence likelihood, represented as a numerical value ranging between 0 and 1.

Standard Normal Table

A reference table that provides the area under the curve of the standard normal distribution, often used to find probabilities and critical values.

Mutually Exclusive Events

Two or more events that cannot occur at the same time, making it impossible for them to happen simultaneously in any given trial.

Probabilities

The quantification of how likely an event is to happen, expressed as a number ranging from 0 to 1, with 0 meaning it cannot occur and 1 meaning it will definitely happen.