Question

The popularity of computer, video, online, and virtual reality games has raised concerns about their ability to negatively impact youth, although the existing literature has been inconsistent. The data in this exercise are based on a recent survey of 14- to 18-year-olds in Connecticut high schools. Here are the grade distributions of boys who have and have not played video games:

Grade Average

A's and B's C's D's and F's
Played Games 740 454 197

Never Played Games 209 148 84

It appears that boys who have played video games have better grades than those who have never played video games. Give percents to back up this claim. (Round your answers to one decimal place.)

	A's and B's	C's	D's and F's
Played games	%	%	%
Never played games	%	%	%

Answer 1

DATA:	The data in this exercise are based on a recent survey of 14-to 18-yearolds in
	Connecticut high schools.Here are the grade distributions of boys who have and
	have not played video games:
	Grade Averege
	A's and B's	C's	D's and F's
Played games	740	454	197
Never played games	209	148	84
Grand Sum =	1832
	Its appears that boys who have played video games have better grade than those who
	have never played video games .
	Now we have to give percents to back up this claim.
	So, we have to computed percentage to both category (played games and never played games)
	corresponding to the three categories of grades(A and B ,C ,D and F)
	percentage =((number of students get corresponds grade category)/(Grand Sum))*100
	We get the following percentage table for the data given below (upto one decimal place)
Percentage table:
	A's and B's	C's	D's and F's
Played games	40.4	24.8	10.7
Never played games	11.4	8.1	4.6
From the percentage table we see that the 40.4% boys who played games ,got the grade A and B which more
than the 11.4% boys who never played games .
From the percentage table we see that the 24.8% boys who played games ,got the grade C which more
than the 8.1% boys who never played games .
Therefore it's claim that boys who played video games have better grades than who have never played video games