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Mathematics, 25.05.2021 22:10 thaddom

The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly
selected math students.
Number of practice problema completed in 30 minutes
Sample 1 12 13 11 10 11 13 12 13 9 13 Mean = 11.7
Sample 2 13 18 17 14 15 14 18 14 15 16 Mean = 15.4
Sample 3 18 14 16 15 16 14 17 16 15 14 Mean = 15.5
Which statement is most accurate based on the data?
O A. A prediction based on the data is not completely reliable, because
the mean of sample 1 is noticeably lower than the means of the
other two samples
OB. A prediction based on the data is not completely reliable, because
the means of samples 2 and 3 are too close together.
OC. A prediction based on the data is reliable, because the means of
samples 2 and 3 are very close together
O D. A prediction based on the data is reliable, because there are no
noticeable differences among the samples.


The table shows the number of practice problems

completed in 30 minutes in three samples of 10 ra

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Answers: 1

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