LT 10D: Interpret and Compare Histograms

LT 10D: Interpret and Compare Histograms

Learning Objectives

• Distinguish between histograms and bar charts 

• Interpret histograms and determine information from them

• Assess histograms for shape, center, and spread

• Develop a histogram using technology 

Histograms are NOT Bar Charts!

Histograms can only be used to represent QUANTITATIVE data. Bar charts are only good for representing QUALITATIVE data.

Multiple Choice

What type of graph is this?

• Bar Graph
• Histogram
• Line Plot

Multiple Choice

How many students are between 48 and 51 inches tall?

• 14
• 8
• 2
• 0

Multiple Choice

Elliot says almost everyone arrived at the party after 10:00 P.M., but Nancy thinks most people came earlier. When did a majority of the people arrive? 

• 7:00-7:59 P.M.
• 8:00–8:59 P.M.
• 9:00–9:59 P.M.
• 10:00–10:59 P.M. 

Multiple Choice

Which interval has 400 employees?

• 33-43
• 0-10
• 77-87
• 66-76

Multiple Choice

21. How many students are represented by the histogram?

• Cannot be determined

• 9

• 31

• 35

Multiple Choice

How many cities have temperatures between 70 degrees and 99 degrees?

• 44
• 34
• 26
• 62

Multiple Choice

What percentage of cities have a monthly temperature of less than 80 degrees?

• 16

• 22

• 35

• 62

Multiple Choice

How many parks have at least 40 trees?

• 26

• 31

• 17

• 22

Shape of Histograms

Skew is easy to see in a histogram!

Multiple Choice

How would you describe this distribution?

• Left skewed

• Uniform

• Right Skewed

• Symmetrical

Multiple Choice

Describe the histogram:

• Left Skewed

• Normal/Symmetrical

• Right Skewed

• Uniform/Flat

Multiple Choice

What is the shape of this bar graph?

• Skew right

• Skew left

• Symmetrical

• uniform

Multiple Choice

Describe the shape of the graph.

• Skewed right
• Skewed left
• Uniform
• Symmetrical

Multiple Choice

Describe the shape of the graph.

• Skewed right
• Skewed left
• Uniform
• Symmetrical

Multiple Choice

What is the range of ages shown in this histogram?

• 10 years

• 30 years

• 20 years

• none of the above

Multiple Choice

What appears to be the approximate median hours of screen time?

• 0-2 hours

• 4-6 hours

• 6-8 hours

• 16-18 hours

Multiple Choice

Which best describes the shape of this histogram?

• Left skewed

• Symmetric

• Right Skewed

Multiple Choice

If Raul measured another tree in the orchard, which is most likely the height of the tree?

• 12 feet
• 21 feet
• 3 feet
• 19 feet

Multiple Choice

How many students have more than 1,000 songs on their MP3 player?

• 5
• 16
• 10
• 4

Multiple Choice

What percentage of the students sent between 40 and 59 text messages?

• 45%

• 25 text messages

• 45 text messages

• 25%

Multiple Choice

How many students sent more than 29 text messages?

• 45

• 85

• 95

• 180

Multiple Choice

How many people watched more than 25 hours of TV last week?

• 0
• 10
• 38
• 42

Multiple Choice

What percent of students have less than 1,000 songs on their MP3 players?

• 15%
• 80%
• 20%
• 45%