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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
The results of a recent poll on the preference of shoppers regarding two products are shown below.
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The mean of a sample is 22.5. The mean of 1000 bootstrapped samples is 22.491. The bias of the bootstrap mean is
Find the probability that a women develops breast cancer given that she has a family history of breast cancer._____________
The following frequency distribution was obtained. The data values are in hours. Construct a histogram for the data .
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Would it be reasonable to conclude that the 5 percent of the employees are not able to pass the random drug test?
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Answer all of these questions using R Commander. Include all graphs, outputs from R Commander.
From Group of 40 People, a jury of 12 people is selected. In how many various ways can a jury of 12 people be selected?
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