6.SP.3 Describing Data

***

The table show the daily amount that Derika spent on snacks. During which week did Derika spend a mean amount of $0.85 per day on snacks?

• Week 1

• Week 2

• Week 3

• Week 4

If the mean (average) of a set of 6 numbers is 15, which of the following statements must be true?

• The median of the set of numbers is 12.

• The range of the set of numbers is 48.

• The sum of the set of numbers is 90.

• The mode of the set of numbers is 15.

The total weight of all the students in Ms. Shearer’s math class is 2,808 lbs. The mean weight is 140 lbs., rounded to the nearest whole pound. How many students are in the class?

• 19

• 20

• 21

• 22

Nora wrote the following data set on the board.      

15, 27, 19, 27, 21, 27, 39

Which value needs to be added to the data set to increase the mean by 5?

• 27

• 32

• 44

• 65

Natalee measured the height of 4 plants and calculated a mean of 7.5 inches. On the chart, what is the height of plant 4?

• 6 inches

• 7 inches

• 8 inches

• 12 inches

Two groups of 5 friends practiced jumps during recess. They recorded the distance each person jumped on the first try

.• The median distance recorded for the first group was 21 inches.

• The median distance recorded for the second group was 32 inches.

Based on this information, which statement must be true?

• In both groups, 3 or more friends jumped a distance greater than 30 inches.

• In only 1 group did 3 or more friends jump a distance greater than 30 inches.

• In both groups, exactly 1 friend jumped a distance of 21 inches.

• In only 1 group did exactly 1 friend jump a distance of 21 inches.

The table below shows the amounts Ace spent weekly on groceries. During which month was the median amount spent per week on groceries less than the mean amount?

• January

• February

• March

• April

The table shows the daily amount each student spent on lunch last week. Which statement is true?

• On Thursday, the median is greater than the mean.

• On Tuesday, the median and mean are the same.

• The median spent on Wednesday is $2.00.

• The mean spent on Wednesday is $2.50.

***

This table shows the number of minutes Carol and Anna walked each day for 5 days. Which statement is true?

• Carol’s mean for the number of minutes she walked is equal to her median.

• Carol’s mean for the number of minutes she walked is greater than Anna’s mean.

• Anna’s median for the number of minutes she walked is greater than her mean.

• Anna’s mean for the number of minutes she walked is equal to Carol’s mean.

The box plot below shows the amount of time, in minutes, sixth-graders spend getting ready for school. What percentage of sixth-graders spend at least 20 minutes getting ready for school?

• 25%

• 50%

• 75%

• 100%