Question

the table displays the number of hours the members of the percussion section practiced over the semester and the number of perfect performances.
practice time
hours of practice 1 2 3 4 5 6 7 8 9
number of perfect performances 1 2 2 3 4 4 5 6 6
be interpreted on a scatter plot?
a. a scatter plot would show a positive association between the hours of practice and the number of perfect performances.
b. a scatter plot would show a negative association between the hours of practice and the number of perfect performances.
c. a scatter plot would show no association between the hours of practice and the number of perfect performances.
d. a scatter plot would show a constant association between the hours of practice and the number of perfect performances.

Explanation:

As the hours of practice increase (from 1 to 9), the number of perfect performances also generally increases (from 1 to 6). In a scatter - plot, when one variable (hours of practice) increases and the other variable (number of perfect performances) also has a tendency to increase, it shows a positive association.

Answer:

A. A scatter plot would show a positive association between the hours of practice and the number of perfect performances.