Math Making Inferences

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

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

Q1. How many red shirts do you have?

• A) 5 red shirts

• B) 17 red shirts

• C) 40 red shirts

• D) 83 red shirts

Litzy collects data from a random sample of 7th graders. Out of 40 respondents, 7 attend afterschool programs. Of the 200 7th graders attending Litzy's school, how many would be expected to attend afterschool programs?

• 14 7th graders

• 28 7th graders

• 35 7th graders

• 42 7th graders

12 ounce shampoo bottle lasts Mike 16 weeks.  How long would you expect an 18-ounce bottle of the same brand to last him?

• 24 weeks

• 6 weeks

• 30 weeks

• 20 weeks

A town has 35,000 registered voters. A random sample of 500 voters finds that 125 are in favor of a new dog park. How many are likely to vote for the dog park?

• 25

• 125

• 2,625

• 8,750

A random sample of 50 was taken from a shipment of 12,000 light bulbs. There were 2 broken bulbs in the sample. How many broken bulbs would you expect in the entire shipment?

• 240

• 480

• 2,400

• 4,800

As part of a 7th grade statistics project, the teacher brings a candy jar full of gumballs (red & green). The assignment is to estimate the proportion of red gumballs in the jar. Suppose one of the students draws 25 gumballs from the jar: 8 are red, 17 are green. What is the SAMPLE?

• 25 gumballs drawn

• all gumballs in the jar

• the students

• the 17 green gumballs

• 14 7th graders

• 28 7th graders

• 35 7th graders

• 42 7th graders