Instruction 3-3
the Stem-And-Leaf Display Below Represents the Number of Vitamin

question 64

Short Answer

Instruction 3-3
The stem-and-leaf display below represents the number of vitamin supplements sold by a health food store in a sample of 16 days.
$$\begin{array} { c l } \text { Stem } & \text { Leaves } \\\hline \hline 1 \mathrm { H } & 99 \\2 \mathrm {~L} & 0023 \\2 \mathrm { H } & 567 \\3 \mathrm {~L} & 034 \\3 \mathrm { H } & 568 \\4 \mathrm {~L} & 1\end{array}$$ Note (1): 1H means the "high teens" = 15,16,17,18,or 19;2L means the "low twenties" = 20,21,22,23,or 24;2H means the "high twenties" = 25,26,27,28,or 29,etc.
Note (2): For this sample,the sum of the observations is 448,the sum of the squares of the observations is 13,356,and the sum of the squared differences between each observation and the mean is 812.
-Referring to Instruction 3-3,the interquartile range of the number of vitamin supplements sold in this sample is ________.

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Definitions:

Strategic Communication

The purposeful use of communication by an organization to fulfill its mission, involving the dissemination of messages to targeted audiences to influence their behavior or opinion.

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A mode of transportation that involves traveling by rail, often distinguished by its efficiency and environmental friendliness.

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Homegrown gardens that were promoted during World Wars I and II in the United States to support the war effort by increasing food production.

War Effort

The collective endeavors of a nation or group to mobilize and dedicate resources towards the successful conduct of a war.