Statistics and Data

What is the range?

• The sum of the largest and smallest number

• The number in the middle

• The difference between the largest and smallest number

• The number that appears most often

What is the mode?

• The average

• The number that appears most often.

• The largest number - the smallest number

• The number in the middle.

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

• 193

• 127

• 60

• 66

The mode score on the 6th grade math test was 94! Which of these interpretations must be correct?

• 99 was the highest score on the test.

• More students received a 94 than any other score

• No student scored below a 50

• A score of 91 was slightly below average.

In order to find the median, the data must be sorted from least to greatest first.

• True

• False

The heights of some students are given. 158cm 172cm 164cm 164cm 167cm 159cm What is the RANGE of the heights?

• 13 cm

• 330 cm

• 164 cm

• 14 cm

Given the data: 136, 150, 119, 150, 125, 140.
Find the upper quartile (Q3). (Hint... put the numbers in order and find the median to help you find Q3)

•  125

• 150

• 139.5

• 143

Find the lower quartile (Q1) of the following set of scores 6, 7, 8, 9, 11, 13, 15

• 13

• 7

• 9

• 6

Find the IQR (Q3 - Q1)  of the data

20, 22, 25, 29, 31

• 30

• 21

• 25

• 9

A measure of variation in a set of numerical data, it is the distance between the first and third quartiles of the data set.

• Interquartile Range

• Outliers

• First Quartile

• Third Quartile