Finding plausible value for correlation

Reference no: EM1315258

Q1) Find out a plausible value r for correlation between vehicle weight and miles per gallon (mpg) shown in the scattergram below?

a) r = -0.1

b) r = -0.9

c) r = -1.0

d) r = 1.0

e) r = 0.8

Q2) Following chart illustrates hours studied by 10 students and their grades on examination. If student studied for 9 hours, about what grade would you expect her to make?

a) 65

b) 50

c) 80

d) 95

e) 45

Reference no: EM1315258

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