Question
6) Determine which pair of variables is positively correlated: A) sales of mosquito spray and sales of dog food B) sales of mosquito spray and
6) Determine which pair of variables is positively correlated:
A) sales of mosquito spray and sales of dog food
B) sales of mosquito spray and sales of winter coats
C) sales of mosquito spray and sales of snow shovels
D) sales of mosquito spray and sales of bathing suits
8) Determine which pair of variables is negatively correlated.
A) the number of bites of a candy bar eaten and the speed limit on the closest highwaythe
B) number of bites of a candy bar eaten and cost of a gallon of milk
C) the number of bites of a candy bar eaten and the amount of calories consumed
D) the number of bites of a candy bar eaten and the amount of candy bar remaining
10) In a certain statistics class the past data has indicated that there is a positive, linear relationship between a student's midterm exam score and their subsequent final exam score. The equation of the linear trend line for this relationship is given by:final score = 42 + 0.58*(midterm score) From the choices below, the best interpretation of the growth rate (slope) is:
A) A student who scored a 0 on the midterm is expected to score a 42 on the final
B )A student's midterm score increases by 0.58 points for every point earned on the final exam
C ) A student who scored a 0 on the final is expected to score a 42 on the midterm
D) A student's final exam score increases by 0.58 points for every point earned on the midterm exam
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