Question

The popularity of computer, video, online, and vitual reality games has raised concerns about their ability to negatively impact youth, although the exsing Iterature has been inconsistent. The data in this exercise are based on a recent survey of 14- to 28-year-olds in Connecticut high schools. Here are the grade distributions of boys who have and have not played video games Grade Avenge A's and is C's D's and Payed Camps 500 243 Never played games 255 19 10 It appears that boys who have played video games have better grades than those who have never played video games Give percents to hack up this claim. {Round your answers to one decimal place. A's and b's C's D's and F's Flayed games Never played games Make a bar graph that compares your percents for boys who have and have not played video games. igre. Cp In. Sundanese

Answer 1

We are given the data and are asked to check if boys who have played video games have better grades than those who have not played video games by giving percentages to back this claim.

	Grade	Aver	age
	A's and B's	C's	D's
Played games	785	500	243
Never Played video games	255	194	130

We can find out the percentages by finding the marginal probabilities as follows:

	Grad	eAve	rage
	A's and B's	C's	D's
Played games	785	500	243
Never Played video games	255	194	130
Total	1040	694	373

So percentage of boys who have played video games is and

785 * 100 = 75.5 1040

percentage of boys who have never played video games is for grade A's and B's

Percentage of boys who have played video games is and

percentage of boys who have never played video games is for grade C's

Percentage of boys who have played video games is and

243 * 100 = 65.1 373

percentage of boys who have never played video games is for grade D's

Representing these percentages in tabular format we get,

	A's and B's	C's	D's
Played games	75.5	72.0	65.1
Never Played video games	24.5	28.0	34.9

Note:- The bar charts given here were too small to read hence I couldn't provide solution for the bar chart portion.