Statistics Vocabulary

Match the following box-and-whisker vocabulary with its discription.

• line inside the box

• 3rd quartile

• the smallest number

• 2nd quartile (median)

• the beginning of the box

• 1st quartile

• the biggest number

• upper extreme

  (maximum)

• the end of the box

• lower extreme (minimum)

Match the following central tendencies vocabulary with the definition.

• middle #

• Mean

• average

• Range

• biggest # minus smallest #

• Median

• occurs most

• Mode

What is the interquartile range?

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

• Pick the smaller number of the two.

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

• They are both the median

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

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 Q1 from Q3.

What is the range?

• average

• biggest-smallest

• the middle #

• happening the most

What is the upper quartile of the set of data; 2, 4, 6, 6, 7, 8, 10

• The median test score is 80.

• The lower quartile is 65.

• The upper quartile is 90.

• The IQR is 30.

Miguel listed the ages of his cousins in years:

2, 4, 18, 2, 7, 14, 16, 7

The median of the data is

​ (a)   ,the third quartile is ​ (b)   , and the first quartile is​ (c)   .

• 7

• 15

• 3

• 8

• 9

• 1

• 2

• 4

• 12

• 16

What percent of students have a height between 58 inches and 60 inches?

____ %