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Statistics & Probability Fundamentals Test
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Statistics & Probability Fundamentals Test
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25 Questions

1. What power is used in the formula for skewness?
2. You calculate the standard deviation of a data set and find that it is -1.23. From this you can determine which of the following is true?
3. The probability of a discrete value in a continuous distribution is equal to __?
4. Which of the following is a characteristic of an F-distribution?
5. The average grade on a midterm exam in a math class is 72. The teacher feels this is too low
6. In a multiple regression model
7. A mean calculation is a part of _______ statistics.
8. What formula is used to determine the probability of a series of outcomes WITH replacement?
9. Let A be a normal distribution with a mean of 3 and B be a normal distribution with a mean of 17. What is the mean of A+B?
10. The variable X is the value of an uneven dice after one roll. It produced the following probability distribution P(X): P(1) = 0.05 P(2) = 0.28 P(3) = 0.12 P(4) = 0.23 P(5) = ? P(6) = ? What is the probability that X = 2 or X = 3?
11. Experts rank athletic teams 1 through 10. This is an example of ______ data.
12. The ______ describes the dispersion of a data set.
13. Which of the following would be appropriate for a t-test?
14. Your college professor standardizes everyone's test scores. Your standardized score is -1.35. Which of the following statements is true?
15. Which of the following is NOT a characteristic of a Normal distribution?
16. Which of the following would be appropriate for a z-test?
17. A coin is tossed three times. What is the probability that it lands on heads exactly one time?
18. What is the most commonly used statistical measure of spread in a normally-distributed population?
19. What does R^2 (R-Squared) calculate?
20. Interpret an R-squared coefficient of .6 for a simple linear regression.
21. What is the mean of: 5
22. An auto analyst is conducting a satisfaction survey
23. Suppose c is a constant number. Calculate var(c).
24. Which one of these variables is a binomial random variable?
25. What is the value of the middle observation in a ordered set of numbers

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