A Research Company Frequently Monitors Trends in the Use of Social

question 85

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.
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { Age Group }$
$\text { Uses Social Media }\begin{array}{|l|c|c|c|c|r|}\hline& 18-29 & 30-49 & 50-64 & 65+ & \text { Total } \\\hline \text { Yes } & 328 & 417 & 288 & 114 & \mathbf{1 1 4 7} \\\hline \text { No } & 67 & 125 & 265 & 242 & \mathbf{6 9 9} \\\hline \text { Total } & \mathbf{3 9 5} & \mathbf{5 4 2} & \mathbf{5 5 3} & \mathbf{3 5 6} & \mathbf{1 8 4 6} \\\hline\end{array}$

-What is the marginal distribution of age groups?

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Definitions:

Infant Recall

The ability of very young children to remember information over time, a critical aspect of cognitive development.

Passive Engagement

The act of involvement in an activity without active participation, often referring to the manner in which people consume media or interact with digital content.

Familiar Surroundings

Environments or settings that are well known and comfortable to an individual, often providing a sense of security.

Emotional Engagement

The investment of emotion and affect in activities, relationships, or learning, which can influence motivation and outcomes.