4. In a study of the relationship between the amount of violence a person watche

Question

4. In a study of the relationship between the amount of violence a person watches on TV and the viewer’s age, 81 regular TV watchers were randomly selected and classified according to their age group and whether the were a “low-violence” or “high violence” viewer. Here is a two-way table of the results.

     

  

a. Compute (in percents) the marginal distribution of age group for all people surveyed.

b.         Construct a bar chart to show your results visually. (Will it be in age group as x-axos and marginal distribution of 'a' in y?

c. Compute (in percents) the conditional distributions of age group among “low-violence” viewers. Then do the same for “high-violence” viewers

d.   How do these distributions differ from the marginal distribution of age group?

16-34 35-64 55 & over Totals Amount of Voilence Low 8 12 21 41 Watched High 18 15 7 40 Totals 26 27 28

Explanation / Answer

a) AGE 16-34 35-55 55& ABOVE

LOW 44.4% 44.4% 75%

HIGH 55.6% 55.65 25%

B)https://www.easycalculation.com/graphs/bar-graph.php COPY THIS LINK AND U WILL GET THE BAR GRAPH,

SORRY COULNT FOUND ANYOTHER WAY TO GIVE YOU THE ANSWER.

C)LOW VIOLENCE

AGE 16-34 35-55 55 & ABOVE

19.5% 29.2% 51.3%

HIGH

AGE 16-34 35-55 55 & ABOVE

45% 37.5% 17.5%

D) THIS IS DIFFERENT FROM MARGINAL DISTRIBUTION AS IT TELLS THE ACTUAL PERCENTAGE IN THE SAME GROUP AND ALSO EASILY COMPARABLE WITH THE OTHER GROUP.

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