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12 questions
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- 1. Multiple Choice
What is the joint relative frequency for girls who like soccer?
45%
33%
22.5%
64.2%
- 2. Multiple Choice
What is the marginal relative frequency for boys surveyed?
12.5%
55%
45%
35.7%
- 3. Multiple Choice
What is the conditional relative frequency of those liking football, given that they are boys?
25%
45.4%
37.5%
62.5%
- 4. Multiple Choice
Which statement about the class groups is true?
Red has a wider range of scores
Both have the same median
Blue has a greater IQR
Blue has the higher overall average
- 5. Multiple Choice
Which statement about the class groups is true?
Blue has a higher standard deviation
The averages are within 1% of eachother
Red had the lowest score overall
Blue's average is almost 10% higher.
- 6. Multiple Choice
Which is true regarding the income data?
The median income is $47,000
The minimum income is an outlier
The maximum income is an outlier
There are no income outliers
- 7. Multiple Choice
Which term best characterizes "We Be Illin'" sick days data distribution?
Not enough information
Symmetric
Skewed Left
Skewed Right
- 8. Multiple Choice
What is the correlation for the college/income table?
Strong Positve
Weak Positive
No Correlation
Strong Negative Correlation
- 9. Multiple Choice
Which equation for the college/income table most closely matches the best line of fit?
y = 12000x + 15000
y = 4000x + 37000
y = -5000x + 31000
y = 6500x + 23,000
- 10. Multiple Choice
Which terms do not specifically match?
Histograms/Data Intervals
Box Plots/Center & Spread
Dot Plots/Frequency Data
Scatter-plots/Causation
- 11. Multiple Choice
Which is FALSE, given:
54, 80, 93, 71, 84, 60, 76, 80
Standard Deviation = 12.7475
IQR = 15, Minimum = 54
Mean = 74.75 and Median = 78
Range = 39, Maximum = 93
- 12. Multiple Choice
The longer I teach, the grayer my hair gets. Which is most likely?
Positive correlation & causation
Negative correlation & causation
Positive correlation but no causation
Negative correlation with no causation
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