An Instructor Made a Frequency Table of the Scores His

question 38

Multiple Choice

An instructor made a frequency table of the scores his students got on a test
$$\begin{array} { c c } \text { Score } & \text { Frequency } \\30 \text {-under } 40 & 1 \\40 \text {-under } 50 & 4 \\50 \text {-under } 60 & 5 \\60 \text {-under } 70 & 10 \\70 \text {-under } 80 & 20 \\80 \text {-under } 90 & 10 \\90 \text {-under } 100 & 5\end{array}$$
The midpoint of the last class interval is _________.

• A)90
• B)5
• C)95
• D)100
• E)50

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Definitions:

Total Expenditures

The sum amount of all spending or expenses incurred by an individual or entity within a specific period.

Price Elasticity

How the requirement for a good shifts in relation to changes in its pricing.

Midpoint Method

A technique used to calculate elasticity by taking the average of the initial and final quantities and the initial and final values.

Total Revenue

The total income received by a firm from its sales of goods or services, calculated as the unit price times the quantity sold.