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Based on the data, select the most reasonable prediction about the height ofsecond-grade students.A. The typical second-grade student is less than 45 inches tall.B. The typical second-grade student is about 45 inches tall.C. The typical second-grade student is more than 50 inches tall.D. The typical second-grade student is about 48 inches tall.

Based on the data, select the most reasonable prediction about the height ofsecond-example-1
User Johannes Pille
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1 Answer

29 votes
29 votes

second-gradeWe are given the following data set:


44,45,47,49,48,48,49,50,48,52

We can calculate the mean of this data set, by adding all the terms and dividing by the number of terms, that is 10:


\text{mean}=(44+45+47+49+48+48+49+50+48+52)/(10)=(480)/(10)=48

Since the mean is 48 this means that the typical second grade student is 48 inches tall. the right answer would be D.

User Moxor
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