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1. Of five letters (A, B, C, D, and E), two letters are to be selected at random. How many possible selections are there?
Question Type: Multiple Choice

2. An experiment consists of tossing 4 coins successively. The number of sample points in this experiment is
Question Type: Multiple Choice

3. Two events are mutually exclusive if
Question Type: Multiple Choice

4. The weights (in pounds) of a sample of 36 individuals were recorded and the following statistics were calculated mean = 160 range = 60 mode = 165 variance = 324 median = 170 The coefficient of variation equals
Question Type: Multiple Choice

5. __________ can be used to determine the percentage of data values that must be within one, two, and three standard deviations of the mean for data having a bell-shaped distribution.
Question Type: Multiple Choice

6. If the data distribution is symmetric, the skewness is
Question Type: Multiple Choice

7. The collection of all possible sample points in an experiment is
Question Type: Multiple Choice

8. Of the last 100 customers entering a computer shop, 25 have purchased a computer. If the classical method for computing probability is used, the probability that the next customer will purchase a computer is
Question Type: Multiple Choice

9. A researcher has collected the following sample data. The mean of the sample is 5. 3 5 12 3 2 The coefficient of variation is
Question Type: Multiple Choice

10. The probability of at least one head in two flips of a coin is
Question Type: Multiple Choice

11. A(n) __________ is a graphical representation in which the sample space is represented by a rectangle and events are represented as circles.
Question Type: Multiple Choice

12. The probability of an intersection of two events is computed using the
Question Type: Multiple Choice

13. A lottery is conducted using three urns. Each urn contains chips numbered from 0 to 9. One chip is selected at random from each urn. The total number of sample points in the sample space is
Question Type: Multiple Choice

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