View the step-by-step solution to:

1. Which of the following pairs of variables should produce a correlation near 0?

1.  Which of the following pairs of variables should produce a correlation near 0?
A) model year (2003, 2004, etc.) and price for a used Honda
B) driving distance from college and weekly cost of gas for a group of commuting college students
C) number of hours studying and number of errors on a math exam
D) IQ and weight for a group of third-grade students
2. A scatterplot shows a set of data points that are clustered close to a line that slopes down to the right. Which of the following values would be closest to the correlation for these data?
A) 0.80
B) 0.40
C) 0.40-
D) 0.80-
3. In a chi-square test for goodness of fit, the null hypothesis is used to create an ideal, hypothetical sample. The frequencies in the ideal sample are called ____.
A) expected frequencies
B) theoretical frequencies
C) observed frequencies
D) null frequencies
4. A linear regression equation has b = 2 and a = 3. What is the predicted value of Y for X = 8?
A) 5
B) 19
C) 26
D) cannot be determined without additional information

Recently Asked Questions

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.


Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question