Question

In: Statistics and Probability

27. Which of the following does not have an error? The correlation between students' majors and...

27. Which of the following does not have an error?
The correlation between students' majors and their GPA is 0.67.
The correlation between students' IQ scores and their foot size is 0.67.

The correlation between students' incomes and their GPA is 1.12.

23. I want to examine the relationship between the number of calories/serving and the grams of fat/serving in breakfast cereals. The explanatory and response variables are
I could use either one.
calories/serving; grams of fat/serving.

grams of fat/serving; calories/serving.

Solutions

Expert Solution

Answer 27

We can have a correlation coefficient value anywhere between -1 to +1, but not less than -1 and not more than +1

So, option A and B have acceptable values of correlation coefficient whereas option C has unacceptable value of correlation coefficient because the value of correlation given in option C is more than +1

So, option C is incorrect.

Answer 23

We have to find the relationship between the number of calories/serving and grams of fat/serving

we know, we can change the number of grams of fat per serving in order to change the number of calories per serving

Thus, explanatory or independent variable is grams of fat per serving and response variable or dependent variable will be calories per serving.

so, option C is correct answer


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