Comparing Populations

Coach Lantz recorded the number of shots on goal players made during two weeks of a soccer game.

What is the mean of week 1?

• 3

• 5

• 9

• 35

Tags

CCSS.7.EE.B.3

Coach Lantz recorded the number of shots on goal players made during two weeks of a soccer game.

What is the mean of week 2?

• 4

• 6

• 7

• 11

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Coach Lantz recorded the number of shots on goal players made during two weeks of a soccer game.

How much greater was week 2's mean than week 1's mean?

• 1

• 2

• 4

• 6

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Brazil asks 7 students how many pencils and pens they carry in their bags. The mean number of pencils is 10. The mean number of pens is 4.

What inference could Brazil make using this data?

• Most of Brazil's classmates carry more pens than pencils.

• Most of Brazil's classmates carry more pencils than pens.

Tags

CCSS.7.SP.A.1

CCSS.7.SP.A.2

CCSS.7.SP.B.4

The dot plots show the weights of a random sample of fish from two lakes.

Which Lake has a greater (bigger) range?

• Lake R

• Lake S

Tags

CCSS.4.MD.B.4

If you compare the medians of each data set, who spends more time online? (Which grade has a greater median?)

• 7th Graders

• 8th Graders

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

The table shows the finish times of 30 runners in the 100-meter dash.

Which year has a smaller mean?

• Last year

• This year

Tags

CCSS.7.EE.B.3

The table shows the finish times of 30 runners in the 100-meter dash.

Which inference is true?

• The runners ran faster this year, on average, as compared to last year.

• Most runners ran faster last year, on average, as compared to this year.

• Every runner ran faster this year as compared to last year.

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5