(02.01 LC)  A television news report says that “74% of Americans have a Facebook account.” The poll is based on phone survey interviews with 4,650 adults randomly chosen from a numbered list of five million responses from around the United States, excluding Florida and Washington. Part A: What is the population and sample in this poll? (3 points) Part B: What type of sampling is used? (3 points) Part C: Are there any sources of bias present? Explain. (4 points) (10 points)

Which type of cells make up the biggest percentage of white blood cells (WBCs)?

(01.03 LC)  The data for numbers of times per week 20 students at Stackamole High eat vegetables are shown below: Part A: Describe the dotplot. (4 points) Part B: What, if any, are the outliers in these data? Show your work. (3 points) Part C: What is the best measure of center for these data? Explain your reasoning. (3 points) (10 points)

(01.03 MC)  The dotplot below shows the number of siblings reported by 25 students in a class. Describe the shape of the distribution. (4 points)

(01.02 LC)  The IQ of 10 adults is measured, and the results are 83, 87, 90, 92, 93, 100, 104, 111, 115, 121. Find the range of the data set. (4 points)

(03.04 MC)  Given P(X) = 0.35, P(Y) = 0.45, and P(Y|X) = 0.25, what are P(X and Y) and P(X or Y)? (5 points)

The nurse is notified a client may have a bacterial infection. The health-care provider prescribes diagnostic testing. For which diagnostic procedure does the nurse prepare the client?

(02.01 LC)  An online article about an opinion poll says that “41% of Americans own a gun.” The poll is based on online survey interviews with 2,700 adults randomly chosen from a numbered list of 750,000 responses from around the United States, excluding New England states. Part A: What is the population and sample in this poll? (3 points) Part B: What type of sampling is used? (3 points) Part C: Are there any sources of bias present? Explain. (4 points) (10 points)

(01.02 MC)  The following table shows the number of hours some high school students in 2 cities spend searching the Internet each week: City A 35 36 35 34 35 38 36 36 38 City B 22 20 50 25 24 65 25 26 24 Part A: Create a five-number summary and calculate the interquartile range for the two sets of data. (6 points) Part B: What is the best measure of center? Justify your answer. (4 points) (10 points)

(01.03 LC)  The data for numbers of times per week 18 students at Whackamole High eat meat are shown below: Part A: Describe the dotplot. (4 points) Part B: What, if any, are the outliers in these data? Show your work. (3 points) Part C: What is the best measure of center for these data? Explain your reasoning. (3 points) (10 points)