PSYC 3002 WEEK 2 QUIZ – QUESTION AND ANSWERS

PSYC 3002 WEEK 2 QUIZ – QUESTION AND ANSWERS • Question 1 1 out of 1 points The following is a list of temperatures for the month of January: 9, 8, 8, 7, 4, 4, 3. If the temperature of 9 degrees is changed to 45, what will happen to the mean? Selected Answer: c. It will increase by about 5 degrees Answer Feedback: This is correct. The mean will change from 6.14 to 11.29. • Question 2 1 out of 1 points The greater the variability in a set of scores, Selected Answer: a. the less accurately the scores are represented by one central score. Answer Feedback: Correct. Scores that are highly variable are less consistent and not accurately summarized by one measure of central tendency. • Question 3 1 out of 1 points If you see the notation ΣΧ2, you should Selected Answer: c. square all the Xs, then sum the squares. Answer Feedback: Correct. You square each score first, and then add those values together. • Question 4