POSSIBLE POINTS 12.5 A study of 100 recent high school graduates investigates a link between their childhood reading habits and achievement in high school
Participants are asked if they read books every night with another person when they were ages 2 to 5, as well as their grade average for all
of their high school classes. The results are represented in the table.
Read books nightly Did not read book nightly
A average 16
10
Baverage
C average
D average
21
14
12
16
3
8
a What does the 21 in the table represent?
What does the 10 in the table represent?
В І
U