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345bata 4: Practice Problems1.These two histograms show the number of text messages sent in one week by two groups of 100students. The first histogram summarizes data from sixth-grade students. The second histogramsummarizes data from seventh-grade students.2520151051554555 6585 95 105 115 125 135 145text messages sent per week by sixth-grade studentsk

User OpMt
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a. The two data do not have the same center

For the sixth-grade students,


\text{Mode }\approx\text{ 90}

For the seventh-grade students,


\text{Mode }\approx\text{ 10}2

Hence, the seventh grade is higher than the sixth grade.

b. The greater spread:

For the sixth grade:


\text{Spread = 5}

For the seventh grade:


\text{Spread = }7

Hence, the spread for the seventh grade is higher

c. Overall, the students for the seventh grade sent more text messages

User Uzun
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