Chapter 10

Question 1

What are some options for graphing data?

Answer 1

A bar graph or pie chart: both can be used with categorical data

Question 2

When should a pie chart be used?

Answer 2

When each individual only falls into ONE category

Question 3

What it a line graph used for?

Answer 3

To show a comparison between groups, change overtime

Question 4

What is a right-skewed histogram?

Answer 4

Long tail on right

Question 5

What is a left skewed histogram?

Answer 5

Long tail on left

Question 6

What are peaks?

Answer 6

Tallest bars on graph

Question 7

What is a median?

Answer 7

The middle number in data set

Question 8

What is the IQR?

Answer 8

Subtract first quartile from third quartile

Question 9

What does a percentile tell us?

Answer 9

That a certain percentage fall below that value

Question 10

What does a five number summary consist of?

Answer 10

Minimum, Q1, median, Q3, maximum

Question 11

What does it mean for a distribution to be considered normal?

Answer 11

symmetric, and mean is right in center, it is unimodal