Dot Plot and Measures of Center

What is the median of the data?

• 105

• 106

• 104

• 110

What is the MODE of this data?

• 90

• 85, 90, and 95

• 85 and 95

• None

What is the mean?

• The number that occurs the most

• The number in the middle

• The difference between the highest and lowest values

• The Average

What is the median?

• The number in the middle

• The difference between the highest and lowest values

• The number that occurs the most

• The average

Which statement correctly compares the measures of center in the two sets of data?

• Both the mean and median are greater for Plot A than for Plot B.

• Both the mean and median are greater for Plot B than for Plot A.

• Plot A has a greater median than Plot B, but Plot B has a greater mean.

• Plot B has a greater median than Plot A, but Plot A has a greater mean.

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

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”

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.
12,10,10,10,13,12,11,13,10

• 13

• 12

• 11

• 10

Find the mean of Violet's test scores.

95, 90, 100, 90, 85, 95, 75

• 105

• 92

• 90

• 95

Find the median number of fires Jack started in the last 8 days.

22, 53, 25, 27, 16, 65, 42, 70

• 34.5

• 42

• 27

• 40.5