Making Inferences in Statistics

If Mr. Estes looked at the means (averages) for the last SAFE Quiz for his classes, and the averages were 72%, 71%, and 74%, what inference can you make based on those averages?

If Mr. Estes looked at the means (averages) for the last SAFE Quiz for his classes, and the averages were 81%, 82%, and 99%, what inference can you make based on those averages?

Four fourth-grade girls and four seventh-grade girls were randomly selected. Their heights, in inches, are recorded below. 4th Grade 56, 47, 54, 51 7th Grade 57, 58, 60, 64 Find the range for both classes and make an inference about the range of scores.

Based on the histograms, which is a true statement?

• DX Comics bring in more money on average.

• Marble Comics bring in more money on average.

• All Marble movies bring in more money than all DX movies.

• The amount earned by DX movies varies much more than the amount earned by Marble Movies.

Based on the histograms, which is a true statement?

• Some DX Comics movies made more than some Marble Comics Movies.

• The DX Comics movie with the greatest revenue made more than the Marble Comics movie with the greatest revenue.

• All Marble Comics movies made more money than every DX Comics movies.

Based on the Histograms, which statement is correct?

• The DX Comics movie with the greatest revenue made more than the Marble Comics movie with the greatest revenue.

• DX Comics made more movies with revenue in the $300,000-400,000 range than Marble Comics did.

• The Marble Comics movie with the greatest revenue made more than the DX Comics movie with the greatest revenue.

Based on the Box Plots, which statement is correct.

• The temperatures were higher on average in St. Louis

• The temperatures varied more noticeably in Washington, D.C.

• The temperatures had a higher measure of center in Washington, D.C.

• St. Louis had the hottest recorded temperature

Based on the Box Plots, which statement is correct.

• Washington, D.C. had the hottest temperature recorded

• Washington, D.C. had the coldest temperature recorded

• The weather varied more in Washington, D.C.

• The temperatures had a higher measure of center in St. Louis

Based on the Box Plots, which statement is correct.

• The hottest temperature was recorded in St. Louis

• St. Louis had the coldest temperature recorded

• The temperatures had a higher measure of center in St. Louis

• The lowest temperature was recorded in Washington, D.C.

Based on the Box Plots, which statement is correct.

• The weather varied more in St. Louis

• The weather varied more in Washington, D.C.

• St. Louis had the hottest temperature recorded

• Washington D.C. had the coldest temperature recorded