Video Games and BMI The table gives some hypothetical data for number of hours of video games played in a day and BMI (body mass index) for some young teenagers. Assume that the trend is linear,...

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Video Games and BMI The table gives some hypothetical data for number of hours of video games played in a day and BMI (body mass index) for some young teenagers. Assume that the trend is linear, calculate the correlation, and explain what the sign shows.

(Although these are hypothetical data, there have been studies that found the same direction for the trend.)

Answered Same DayDec 25, 2021

Answer To: Video Games and BMI The table gives some hypothetical data for number of hours of video games played...

David answered on Dec 25 2021

127 Votes

x y xy x2 y2
0 27 0 0 729
2 25 50 4 625
4.5 36 162 20.25 1296
3 40 120 9 1600
4 35 140 16 1225

1 19 19 1 361
2 34 68 4 1156∑
xi =
∑
yi =
∑
xiyi =
∑
x2i =
∑
y2i =
16.5 216 559 54.25 6992
Correlation Coefficient or Pearson Correlation is given by:
rxy =
n
∑
xy −...

SOLUTION.PDF

Sun	Mon	Tue	Wed	Thu	Fri	Sat
30	31	1	2	3	4	5
6	7	8	9	10	11	12
13	14	15	16	17	18	19
20	21	22	23	24	25	26
27	28	29	30	1	2	3

Video Games and BMI The table gives some hypothetical data for number of hours of video games played in a day and BMI (body mass index) for some young teenagers. Assume that the trend is linear,...

Answer To: Video Games and BMI The table gives some hypothetical data for number of hours of video games played...

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