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(01.03 MC)  A group of people was randomly selected and asked how many hours per day each person spends on gaming. The results of the survey are displayed in the following histogram: What percentage of the people surveyed spend 3 hours or less per day gaming? (4 points)

(01.03 LC)  Describe the shape of the following stemplot: (4 points)

(02.02 MC)  A group of experimenters has 30 hummingbirds in a large container and needs to assign 10 to each of the three groups labeled A, B, and C for an experiment. They can capture the hummingbirds one at a time when the hummingbirds enter a side chamber in the container that is baited with food. Which of the following methods is most likely to result in three comparable groups of 10 hummingbirds each? (4 points)

(01.02 MC)  The following table shows the number of hours some high school students in 2 cities spend watching television each week: City A 21 23 24 22 24 25 23 23 22 City B 24 22 20 23 23 50 20 46 21 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)

Cellular edema is related to diseases that affect which of the following cellular structure?

(01.02 MC)  For which of the following distributions is the mean most likely to be relatively equal to the median? (5 points)

(01.05 MC) Mrs. Goodman’s physics class built different-shaped parachutes to see which shapes were more effective. The students tested the parachutes by dropping them from a height of 20 feet and timing the fall. They calculated the summary below: Mean Std Dev Min Q1 Median Q3 Max 4.6 secs 0.4 sec 2.3 secs 3.1 secs 4.2 secs 5.5 secs 6.4 secs The students want to see what happens to their times when they drop the parachutes from 32 feet. They find that the time of every drop is increased by 2 seconds. Find the new mean and standard deviation. (4 points)

(01.03 MC) The Harris school district gives awards to its schools based on overall student attendance. The data for attendance are shown in the table below, where Min represents the fewest days attended and Max represents the most days attended for a single student: School Min Max Range Mean Median IQR σ High School A 98 180 82 158 148 55.5 35.2 High School B 105 180 75 145 124 48.5 28.2 High School C 102 180 78 169 151 53.5 31.3 Part A: If the school district wants to award the school that has the most consistent attendance among its students, which high school should it choose and why? Justify your answer mathematically. (5 points) Part B: If the school district wants to award the school with the highest average attendance, which school should it choose and why? Justify your answer mathematically. (5 points) (10 points)

Which of the following is true regarding cystic fibrosis?

(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)