Mean, Median, Mode, Range and Dot Plots

The dot plots show the heights of seventh graders in two classes. Which statement is best supported by these data?

• The distributions of the data of both classes are approximately symmetrical

• The median height of the students in Mr. Carter's class is less than the median height of the students in Mrs. Petunia's class

• Mr. Carter's class has a greater range in player heights than Mrs. Petunia's class has

• The mode height of the students in Mr. Carter's class is less than the mode height of students in Mrs. Petunia's class

Answer explanation

To find the range you need to subtract the highest value and the lowest value for each class

Tags

dot plots

teks 7.6g

range

median

mode

The dot plots show the number of pets students have in two classes. Which statement is best supported by the data?

• The mean of Mrs. Jones' class is higher than the mean of Mr. Carson's class.

• The range of Mr. Carson's class is lower than the range of Mrs. Jones' class.

• The median of Mr. Jones' class is equal to the median of Mr. Carson's class.

• The mode of Mrs. Jones' class is higher than the mode of Mr. Carson's class.

Answer explanation

Remember, the median is the middle data point

Tags

dot plots

teks 7.12a

mean

median

mode

The dot plots show the grades on a test of two different classes. Which statement is best supported by the data?

• The distribution of both sets of data are mostly symmetrical

• The mode of Ms. Henry's class is lower than the mode of Mrs. Clarence's class

• The median of Ms. Henry's class is higher than the median of Mrs. Clarence's class

• Mrs. Clarence's class has a higher range of test scores than Ms. Henry's class

Answer explanation

The mode is the option that has the most dots (data points) associated with it

Tags

dot plots

teks 7.12a

median

mode

range

The dot plots show the prices for different baits at two different shops. Which statement is best supported by the data?

• The distribution of Grey's Baits is mostly symmetrical

• The mode of Grey's Baits is less than the mode of Bait and Tackle

• The range of Bait and Tackle is less than the range of Grey's Baits

• The median of Bait and Tackle is greater than the median of Grey's Baits

Tags

median

range

mode

dot plots

teks 7.12a

What is the median of the data set: 12, 15, 11, 19, 22, 24, 17 after arranging it in ascending order?

• 15

• 17

• 19

• 22

Members of the drama club are getting measured for costumes. The dot plot below shows the height of distribution of the club in inches. Which statement about the data is true?

• The median is 54.5 and the IQR is 2.5"

• The median is 54 and the IQR is 2.5”

• The median is 53.5 and the IQR is 2”

• The median is 55 and the IQR is 3”

Given the frequency table below, what is the mean of the data? | Number | Frequency | |--------|-----------| | 1 | 2 | | 2 | 3 | | 3 | 1 | | 4 | 4 |

• 2.5

• 2.6

• 2.7

• 2.8

The double dot plots show the average wait times in minutes for two popular rides at an amusement park. Compare the measures of center and variation, which ride typically has a longer wait time?

• No inference can be made from the graph.

• Topsy Turvy

• The wait times are the same for both rides.

• Rocket Blast

The double dot plot shows the gas mileage, in miles per gallon, for several cars and SUVs.

• The cars have a greater gas mileage with a greater variation.

• The cars have a greater gas mileage with a less variation.

• SUVs have less gas mileage with greater variation.

• SUVs are centered around a greater median.

These two dot plot shows the daily low temperatures for two cities for 15 days. Which city has a greater amount of VARIATION in temperatures?

• Both dot plots are bell shaped so they have the same variation.

• Lahnston has greater variation because the range in temperature for Lahnston is greater than for Zaslow.

• The dot plots are for different cities so we can't say.

• Zoslow has greater variation because the range in temperature for Zoslow is greater than for Lahnston.