Stat 200- Homework 4

# Stat 200- Homework 4 - Stat 200 Section 2 Homework#4 5.1 a...

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Stat 200 Section 2 2/13/08 Homework #4 5.1 a) It is negative because coordination will decrease when the amount of the alcohol consumed is increased. b) The connection has no association relation between the height and grade point average. c) The amount is negative because the amount of training for running increases when the average time will decrease. d) Positive because the taller people are more likely to have longer forearms and feet, where as shorter people are more likely to have shorter forearms and feet. 5.3 a) Appropriate because the two variables are quantitative. b) It’s not appropriate because both of them are not categorical. c) Appropriate because both of them are quantitative. d) A scatterplot would not be appropriate with this since the gender is a categorical variable. 5.4 a) There is no association. b) Head circumference= 61 cm, Height= 62 inches 5.9 a) Average weight= -250+6(70)= -250+420= 170 lbs b) Average weight will increase 6 pounds for each one inch increase height.

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