Instruction 2 -Referring to Instruction 2

question 19

Multiple Choice

Instruction 2.4
The following are the durations in minutes of a sample of long-distance phone calls made within Australia reported by one long-distance carrier.
$$\begin{array} { | l | l | } \hline \text { Time (in Minutes) } & \text { Relative Frequency } \\\hline0 \text { but less than 5 } & 0.37 \\\hline 5 \text { but less than 10 } & 0.22 \\\hline \begin{array} { l } 10 \text { but less than } \\15\end{array} & 0.15 \\\hline \begin{array} { l } 15 \text { but less than } \\20\end{array} & 0.10 \\\hline \begin{array} { l } 20 \text { but less than } \\25\end{array} & 0.07 \\\hline \begin{array} { l } 25 \text { but less than } \\30\end{array} & 0.07 \\\hline 30 \text { or more } & 0.02 \\\hline\end{array}$$
-Referring to Instruction 2.4,if 1,000 calls were randomly sampled,how many calls lasted under 10 minutes?

• A) 590
• B) 370
• C) 410
• D) 220

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Definitions:

Commodities

Fundamental commodities traded in business that can be exchanged with others of alike kind.

Units Of Good

Measurement quantities used to quantify the amount, number, or level of goods.

Utility Function

A mathematical representation that assigns a value to every possible bundle of goods or services, with the value indicating the level of satisfaction or happiness that the consumer derives from that bundle.

Cow Feed

Refers to the food given to cows, which can include grass, grains, and nutritional supplements to ensure healthy growth and milk production.