Exploring Mean and MAD for Comparisons

Which statement is true about the MAD of the Australian data set compared to the US data set?

• The MAD of the Australian data set is slightly greater than the MAD of the US data set.

• The MAD of the Australian data set is equal to the MAD of the US data set.

• The MAD of the Australian data set is significantly greater than the MAD of the US data set.

• The MAD of the Australian data set is slightly less than the MAD of the US data set.

Which data set has the smaller mean without calculating?

• It cannot be determined without calculation.

• The data set for the Australian students.

• Both data sets have the same mean.

• The data set for the South African students.

Why does the Australian data set have a smaller mean?

• Because there are fewer data points less than 20.

• Because there are more data points less than 20.

• Because there are fewer data points greater than 20.

• Because there are more data points greater than 20.

Which data set has the smaller MAD and why?

• South African data set because their data points are more tightly grouped.

• Australian data set because their data points are more spread out.

• Australian data set because their data points are more tightly grouped.

• South African data set because their data points are more spread out.

What does a smaller mean indicate in the context of commute times?

• Longer times getting to school.

• Shorter times getting to school.

• More variability in commute times.

• Less variability in commute times.

What does a smaller MAD tell us in the context of commute times?

• The times are more spread out.

• The times are shorter.

• The times are closer together and more similar.

• The times are longer.

Which basketball team does Lynn prefer and why?

• Shadyside High School because their mean score is higher.

• Sunnyside High School because their MAD is smaller.

• Sunnyside High School because their mean score is lower.

• Shadyside High School because their MAD is larger.

Do you agree with Jada, Andre, or both regarding the perimeter of the rectangle?

• Only Jada is correct.

• Only Andre is correct.

• Both Jada and Andre are correct.

• Neither Jada nor Andre is correct.

Which of the following is a correct inequality statement using the numbers -4, -5, and -6?

• -5 is less than -6.

• -6 is greater than -5.

• -5 is greater than -6.

• -4 is less than -5.

Would you expect each elephant seal to weigh exactly 5,500 pounds?

• No, because all elephant seals weigh more than 5,500 pounds.

• No, because there is variability in the data.

• Yes, because all elephant seals weigh the same.

• Yes, because the average weight is 5,500 pounds.