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- 1. Multiple Choice
If the value we are looking for is smaller than the mean, the value of z is:
Not enough information
Negative
Positive
0
- 2. Multiple Choice
If the value we are looking for is the same as the mean, the value of z is:
Not enough information
Positive
Negative
0
- 3. Multiple Choice
Which statement is valid?
None of the options
Probability = -0.89
Probability = 1.89
Probability = 1
- 4. Multiple Choice
What's the probability x < 13?
(Mean = 10, Variance = 4)
0.9332
0.2266
0.7734
0.0668
- 5. Multiple Choice
What's the probability x > 17?
(Mean = 15, Standard dev = 3)
0.7486
0.7454
0.2514
0.2546
- 6. Multiple Choice
What's the probability of the gray area?
(Mean = 55, Standard dev = 2.5)
0.8185
0.8413
0.8641
0.8389
- 7. Multiple Choice
What's the probability of x < 13 ?
(Mean = 20, Standard dev = 6.5)
0.1423
0.1401
0.0446
0.0359
- 8. Multiple Choice
What's the probability of the highlighted area?
(Mean = 30, Variance = 1)
0.8664
0.7863
0.9332
0.8754
- 9. Multiple Choice
What's the probability of the highlighted area?
(Mean = 100, Standard dev = 10)
0.9772
0.0228
0.1587
0.0062
- 10. Multiple Choice
What's the probability of 49 < x < 51 ?
(Mean = 50, Standard dev = 6.5)
0.1192
0.1251
0.1587
0.0875
- 11. Multiple Choice
Based on the graph, who has the highest IQ?
You
Me
Both have the same
Not enough information
- 12. Multiple Choice
If you had to guess the probability of the gray area, which would you choose?
0.2
0.4
0.6
0.8
- 13. Multiple Choice
Which gray area shows a probability closer to 0.5?
- 14. Multiple Choice
If you had to guess the probability of the gray area, which would you choose?
0.2
0.4
0.6
0.8
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