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

question 8

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.
$$\begin{array} { | l | l | } \hline \text { Stem } & \text { Leaves } \\\hline \text { 1H } & 99 \\\hline \text { 2L } & 0023 \\\hline \text { 2H } & 567 \\\hline \text { 3L } & 034 \\\hline \text { 3H } & 568 \\\hline \text { 4L } & 1 \\\hline\end{array}$$ 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 arithmetic mean of the number of vitamin supplements sold in this sample is _____________ .

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Definitions:

Relaxation

The state or process of becoming less tense or anxious, often achieved through practices like meditation, deep breathing, or yoga.

Biofeedback

A technique that teaches control over involuntary physiological processes through monitoring and feedback.

Muscle Tension

The state of partial or complete contraction of muscles, which can be voluntary or due to stress, anxiety, or other factors.

Genetic Makeup

the complete set of genes or genetic material present in a cell or organism, determining its hereditary traits.