One thousand and twenty students participated in the school math contest.
sample 1 is a rando...
Mathematics, 06.10.2019 11:40, krystalhurst97
One thousand and twenty students participated in the school math contest.
sample 1 is a random sample from grades 9 and 10 and consists of the following scores: 72, 89, 67, 81, 75, 79, 81, 80, 62, 64, 83.
sample 2 is a random sample from grades 11 and 12 and consists of the following scores: 84, 86, 87, 84, 86, 89, 90, 87, 87, 84, 86.
choose the following statements that correctly compare the two samples.
check all that are true.
a). sample 2 shows 11th and 12th grade students, on average, did better.
b) . sample 1 has a higher probability than sample 2.
c). the measure of center is the same for both samples.
d). sample 1 shows 9th and 10th grade students, on average, did better.
e). sample 2 has a higher median score than sample 1.
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