Random Sampling and Histograms

Is a histogram the same as a bar graph?

• Yes, because they both use intervals.
• No, because a histogram displays numerical data while a bar graph displays categorical data.
• Yes, because they both use bars to display data.
• No, because a histogram displays categorical data while a bar graph displays numerical data.

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

• 5

• 16

• 10

• 4

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

• 44

• 34

• 26

• 62

How many employees are there that make between $33,000 and $43,000

• 250
• 500
• 550
• 750

21. How many students are represented by the histogram?  

• Cannot be determined
• 9
• 31
• 35

24. How many of the students had an ACT composite score of at least 20? 

• 12
• 15
• 20
• Cannot be determined

Describe the histogram:

• Left Skewed
• Symmetrical
• Right Skewed
• Uniform

How would you describe this distribution?

• Left skewed
• Uniform
• Right Skewed
• Symmetrical

What kind of distribution is this?

• Left skewed
• Symmetrical/Normal
• Right skewed
• Uniform/Flat

In which interval is the median?

• [20, 30)

• [30, 40)

• [40, 50)

• [50, 60)