A Research Company Frequently Monitors Trends in the Use of Social

question 23

Essay

A research company frequently monitors trends in the use of social media by American Adults. The results of one survey of 1846 randomly selected adults looked at social media use versus age group. The table summarizes the survey results.
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { Age Group }$
$\text { Uses Social Media }\begin{array}{|l|c|c|c|c|r|}\hline & 18-29 & 30-49 & 50-64 & 65+ & \text { Total } \\\hline \text { Yes } & 328 & 417 & 288 & 114 & \mathbf{1 1 4 7} \\\hline \text { No } & 67 & 125 & 265 & 242 & \mathbf{6 9 9} \\\hline \text { Total } & \mathbf{3 9 5} & \mathbf{5 4 2} & \mathbf{5 5 3} & \mathbf{3 5 6} & \mathbf{1 8 4 6} \\\hline\end{array}$

-Identify the variables and tell whether each is categorical or quantitative.

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Definitions:

Sexual Exchange

The process of genetic material exchange during sexual reproduction, leading to genetic diversity in offspring.

Spirogyra

A filamentous green algae characterized by its spiral chloroplast arrangements, commonly found in freshwater environments.

Conjugation

Transfer of genetic material from one cell to another.

Endosymbiotic Hypothesis

A theory that explains the origin of mitochondria and chloroplasts in cells as a result of early symbiotic relationships between separate single-celled organisms.