(08.06 MC) A random sample of 150 students is chosen from a population of 5,000 students. The mean IQ in the sample is 110, with a standard deviation of 10. What is the 95% confidence interval for the students’ mean IQ score?

(08.01 LC) Sally is playing a board game and rolls two number cubes. Let A = {the sum of the number cubes is odd} and let B = {the sum of the number cubes is divisible by 2}. List the outcomes in A ∩ B.

(Systems of Linear Equations MC)The system of linear equations 3x + 2y = −4 and is graphed on a coordinate plane. Approximate the solution to the system.

(Slope-Intercept Form HC)A track runner counted the number of races he had during a season. The graph shows the relationship between the number of track meets, x, and the number of races, y.Part A: Calculate the slope of the linear equation shown in the graph. Show all necessary work. (3 points)Part B: What does the slope mean for the relationship between the number of races and the number of track meets? (3 points)Part C: Interpret the y-intercept in the situation. (3 points)Part D: Write the equation of the line shown on the graph in slope-intercept form. (3 points)

(08.03 MC) A group of people were given a personality test to determine if they were Type A or Type B. The results are shown in the table below:     Male Female Type A 65 85 Type B 38 12 Compare P(Female | Type B) with P(Female or Type B).

(Slope MC)Superior Segway Tours gives sightseeing tours around Chicago, Illinois. It charges a one-time fee of $40, plus $35 per hour. What is the slope of this situation?

(08.03 MC) A group of people were given a personality test to determine if they were Type A or Type B. The results are shown in the table below:     Male Female Type A 55 75 Type B 48 22 Compare P(Male | Type A) with P(Male or Type A).

(08.06 LC) Lars wants to know if warming up will help runners sprint faster. Twenty-four track and field athletes volunteered to participate in his study. He randomly assigns 12 athletes to warm-up for 10 minutes. All 24 participants sprint the same distance. He calculates the mean for each group and determines that the mean for the warm-up group was 7.8 seconds and the mean for the other group was 9.8 seconds. To test the difference of means, he re-randomized the data 54 times, and the differences are plotted in the dot plot below. What can Lars conclude from her study?

(07.04 LC) What is the sum of the geometric sequence −3, 18, −108, … if there are 7 terms?

For the first few minutes after application to the neuromuscular junction, an acetylcholinesterase inhibitor causes…