1. What is the standard deviation of the data {7, 1, 7, 10, 5, 3, 2}?
   1. 3.0
   2. 9.0
   3. 5.0
   4. 2.7
2. What is the center of {0.1, 0.3, 0.02, 0.09, 0.4, 0.05, 0.26}?
   1. 0.3
   2. 0.4
   3. 0.2
   4. 0.1
3. Explain how to use the formula P(A or B)=P(A)+P(B)P(A and B). Be specific.
4. Solve for XB(10,0.75) for x=5.
5. The two-way frequency table shows the number of blue and green parrots and parakeets in a rescue facility. Find the probability that a randomly selected bird is a parakeet given that it is green.

	Green	Blue	Total
Parrot	17	16	35
Parakeet	20	28	48
Total	37	44	83

6. In how many ways can you rearrange the letters in the word "COUNT," in order to get every possible outcome?

1. 150
2. 10
3. 120
4. 25

7. What is the probability distribution if XB(3,0.82)?

8. Out of a sample of 760 people, 367 own their homes. Construct a 95% confidence interval for the population mean of people in the world that own their homes.

1. CI = (44.74%, 51.84%)
2. CI = (46.87%, 52.56%)
3. CI = (45.31%, 51.27%)
4. CI = (43.62%, 52.96%)

9. Based on the histogram below, how are data distributed, and where is the mean located in relation to the median?

1. Positively skewed, and the mean is to the right of the median.
2. Negatively skewed, and the mean is to the left of the median.
3. Positively skewed, and the mean is to the left of the median.
4. Negatively skewed, and the mean is to the right of the median.