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  3. 2. (9 pts) it is difficult to determine a personâ

2. (9 pts) It is difficult to determine a person’s body fat percentage accurately without immersing...

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Statistics

2. (9 pts) It is difficult to determine a person’s body fatpercentage accurately without immersing him or her in water.Researchers hoping to find ways to make a good estimate immersed 20male subjects, then measured their weights shown in the table.

(2 pts) Determine the linear correlation coefficient.

(4 pts) Find the least-squares regression line.

(2 pts) Interpret the slope and y-intercept if appropriate.

(1 pts) Predict the body fat percentage if the weight is 190lb.

Weight (lb)

Body Fat (%)

175

6

181

21

200

15

159

6

196

22

192

31

205

32

173

21

187

25

188

30

188

10

240

20

175

22

168

9

246

38

160

10

215

27

159

12

146

10

219

28

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