Noah gathered data at his school among 7th and 8th graders to see if there was an association between grade
level and handedness. This table shows his data, but the number of right-handed 8th graders is missing,
left-handed right-handed
7th grade 11
8th grade 24
72
Noah found there was no evidence of an association between grade level and handedness. Which of these could
be the number of right-handed 8th graders?
85
107
33
157
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