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

question 86

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 coefficient of variation of the number of vitamin supplements sold in this sample is ________ percent.

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Definitions:

Eukaryotes

Organisms whose cells have a nucleus enclosed within a nuclear envelope, making up one of the three recognized domains of life, including plants, animals, fungi, and protists.

Transcription Initiation

The first stage of gene expression in which the enzyme RNA polymerase binds to a promoter region of DNA, starting the process of RNA synthesis.

TATA Box

A DNA sequence found in the promoter region of genes, indicating where transcription begins; crucial for gene expression.

Methyl Groups

An alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms - CH3. It can modify DNA molecules and affect gene expression when added to DNA sequences.