Range and Interquartile Range Mean Median Mode

Which of the following best describes the process of finding the interquartile range for a set of data?

• Add the biggest and smallest numbers.

• Place the numbers in order from least to greatest and find the middle.

• Find the difference between the maximum and the minimum.

• Subtract the median of the upper quartile and the median of the lower quartile. Q3 - Q1

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

What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number

• Add the two numbers in the middle & then divide by two.

• They are both the median

• None of the above

Find the median of these numbers:

2, 5, 4, 3, 7, 5, 5,

• 4

• 5

• 3

• 6

Ms. Andrey claims the average score on a quiz in her class was 25. Mr. Luna claims the average score on a quiz in his class is 25.

• Ms. Andrey used the mode, while Mr. Luna used the median.

• Ms. Andrey used the mean, while Mr. Luna used the mode.

• Both teachers used the mean.

• Both teachers used the median.

Find the Interquartile range of the data set.

• 24

• 48

• 45

• 34

Find the Interquartile Range of the box plot.

• 4

• 9

• 2

• 8

What data value is the upper quartile (Q3)?

• 64

• 62

• 66

• 58

Match the following terms with its correct definition.

• The sum of all values divided by the total number of values

• Mode

• Add together, and divide by 2.

• Mean or Average

• The number that appears most frequently in a set of numbers

• Median

• The difference between the highest and lowest values in a set of numbers

• Range

• The middle value in a list of numbers when arranged in ascending order

• What if there are 2 numbers in the middle?

What is the difference between Q3 and Q1?

• range

• interquartile range

• upper quartile

• outlier