A survey was conducted with high school students in each grade to see how many participate in sports. The
data are shown below.
Which statement is true about the marginal frequencies
in this table?
9
10
11
12
Total
O 191 students play sports and 150 students do not.
O 153 students do not participate in sports and
seventy-five 12th graders were surveyed
O 153 students do not participate in sports and 190
do.
Sports
63
52
35
41
O 191 students play sports and ninety-seven 10th
graders were surveyed.
No
Sports
51
45
21
36
Total
344
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