Height of Seedlings

The table shows the heights of 10 seedlings. Heights of Seedlings Seedling A B C D E F G H I J Height (in.) 1 1/4 2 1 1 1/4 3 2 1/2 1 1/2 1 1/2 1 2 Which dot plot represents these data?

• Diagram F

• Diagram H

• Diagram G

• Diagram J

Answer explanation

Choose Diagram G as it correctly represents the heights of the seedlings in the table.

The thicknesses of the boards Dennis used for a construction project are listed below. These measurements are in inches. 1 3/4, 1 1/2, 1 3/4, 1 1/2, 1 3/8, 1 1/8, 1 5/8, 1 3/4, 1 1/2 Which dot plot represents these measurements?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Answer explanation

Diagram D is the correct choice as it accurately represents the given measurements with the correct frequencies of each thickness.

A youth soccer team has eight players. The table shows the height and the weight of each of the eight players. Which scatterplot best represents the data in the table?

• Scatterplot F

• Scatterplot G

• Scatterplot H

• Scatterplot J

Answer explanation

Scatterplot G best represents the data in the table as it shows the relationship between height and weight for each of the eight players.

The table shows the ages of 10 people and the numbers of concerts they attended in the last year. Which scatterplot best represents all the data in the table?

• Scatterplot A

• Scatterplot B

• Scatterplot C

• Scatterplot D

Answer explanation

Scatterplot A best represents all the data in the table as it shows a clear positive correlation between age and the number of concerts attended.

The table shows the high temperatures and the numbers of snow cones sold at a snack bar on seven days. Which scatterplot best represents the data in the table?

• Scatterplot A

• Scatterplot B

• Scatterplot C

• Scatterplot D

Answer explanation

Scatterplot A best represents the data in the table as it shows a positive correlation between high temperatures and the number of snow cones sold.

The table shows the amount of time eight thunderstorms lasted and the amount of rainfall each thunderstorm produced. Which scatterplot best represents the data?

• Scatterplot A

• Scatterplot B

• Scatterplot C

• Scatterplot D

Answer explanation

Scatterplot A best represents the data as it shows the relationship between the duration of thunderstorms and the amount of rainfall produced.

The students in a class measure and record their heights in inches. The stem and leaf plot shows their results.

• 8 in.

• 10 in.

• 3 in.

• 5 in.

Answer explanation

The correct answer is 10 in. as it has the highest frequency in the stem and leaf plot, indicating it is the most common height among the students.

The scatterplot shows the scores that students in a 5th-grade class earned on a reading test and on a science test. What fraction of the 5th-grade students earned a score higher than 80 on both the reading test and the science test?

• 4/18

• 6/18

• 7/8

• 10/18

Answer explanation

This is the explanation of the answer.

What is the difference between the number of visitors who were younger than 20 and the number of visitors who were 20 and older?

• 75

• 52

• 18

• 23

Answer explanation

The correct answer is 23 because the difference between the number of visitors younger than 20 and those 20 and older is 23.

The stem and leaf plot shows the number of laps around a track that several teams walked as part of a fund-raiser for the library. The teams that walked more than 50 laps raised an extra $100 for the library. What fraction of the teams raised this extra money?

• 1/4

• 5/12

• 7/15

• 1/3

Answer explanation

The fraction of teams that raised the extra money by walking more than 50 laps is 1/3, as there are 3 teams out of a total of 9 that walked more than 50 laps and raised the extra $100 for the library.