Question 6.62

27. For each of the following pairs of variables, would you expect a substantial negative correlation, a substantial positive correlation, or a small correlation?

  1. The age of used cars and their prices
  2. The weight of new cars and their gas mileages in miles per gallon
  3. The heights and weights of adult women
  4. The heights and IQ scores of adult men

27.

(a) Negative

(b) Negative

(c) Positive

(d) Small