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- 1. Multiple Choice
Describe the distribution:
Symmetric
Skewed left
Skewed right
- 2. Multiple Choice
The mean of this distribution would be ______ the median.
approximately equal to
less than
greater than
- 3. Fill in the Blank
What is the median commute time?
- 4. Fill in the Blank
What is the range?
- 5. Fill in the Blank
What is the IQR
- 6. Multiple Choice
Describe the distribution.
Symmetric
Skewed left
Skewed right
- 7. Multiple Choice
The mean of this distribution will be ____________ the median.
approximately equal to
less than
greater than
- 8. Multiple Choice
Which company has a greater median?
Company A
Company B
- 9. Multiple Choice
Which company has a greater standard deviation?
Company A
Company B
- 10. Multiple Choice
What percent of values are within two standard deviations of an approximately normal distribution?
50%
68%
95%
99.7%
- 11. Multiple Choice
What percent of values are below the mean of an approximately normal distribution?
50%
68%
95%
99.7%
- 12. Multiple Choice
Mean = 35
Standard Deviation = 5
What percent of values are between 30 and 40?
50%
68%
95%
99.7%
- 13. Multiple Choice
Mean = 10.5
Standard Deviation = 1.5
What percent of values are between 7.5 and 13.5?
50%
68%
95%
99.7%
- 14. Multiple Choice
Mean = 100
Standard Deviation = 15
What percent of values are higher than 130?
2.5%
5%
16%
95%
- 15. Multiple Choice
A value of 12 is one standard deviation below the mean.
A value of 21 is two standard deviations above the mean.
What is the mean?
3
9
15
18
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