1 (4 points) 1 Find the range for the given data. Rich Borne is currently taking Chemistry 101. On the five laboratory assignments for the quarter, he got the following scores: Compute the range. Question 1 options: 1) 58 2) 16 3) 41 4) 17 Save Question 2 (4 points) 2 Find the mean for the given sample data. Bill kept track of the number of hours he spent exercising each week. The results for four months are shown below. Find the mean number of hours Bill spent exercising per week. Round your answer to two decimal places. Question 2 options: 1) 7.87 2) 7.25 3) 8.10 4) 7.65 Save Question 3 (4 points) 3 From the information provided, create the sample space of possible outcomes. Both Fred and Ed have a bag of candy containing a lemon drop, a cherry drop, and a lollipop. Each takes out a piece and eats it. What are the possible pairs of candies eaten? Question 3 options: 1) LD-LD CD-LD LP-LP LD-LP CD-CD LD-LP LP-CD 2) LD-LD CD-LD LP-LP LD-CD CD-CD LD-LP LP-CD 3) CD-LD LD-LP LP-CD LP-LP LD-LD 4) LD-CD LD-CD LD-CD LD-LP LD-LP LD-LP CD-LP Save Question 4 (4 points) 4 Find the standard deviation of the data summarized in the given frequency distribution. The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency distribution below summarizes the results. Find the standard deviation. Round your answer to one decimal place. Question 4 options: 1) 5.3 2) 7.0 3) 4.8 4) 5.1 Save Question 5 (4 points) 5 Find the mean for the given sample data. The local Tupperware dealers earned these commissions last month: What was the mean commission earned? Round your answer to the nearest cent. Question 5 options: 1) $2469.09 2) $2463.09 3) $3086.36 4) $2743.43 Save Question 6 (4 points) 6 Find the indicated probability. 100 employees of a company are asked how they get to work and whether they work full time or part time. The figure below shows the results. If one of the 100 employees is randomly selected, find the probability that the person drives alone or cycles to work. 1. Public transportation: 8 full time, 9 part time 2. Bicycle: 3 full time, 3 part time 3. Drive alone: 28 full time, 31 part time 4. Carpool: 9 full time, 9 part time Question 6 options: 1) 0.65 2) 0.59 3) 0.31 4) 0.36 Save Question 7 (4 points) 7 Find the median for the given sample data. The distances traveled (in miles) to 7 different swim meets are given below: Find the median distance traveled. Question 7 options: 1) 47 miles 2) 69 miles 3) 31 miles 4) 46 miles Save Question 8 (4 points) 8 Find the mean of the data summarized in the given frequency distribution. The highway speeds of 100 cars are summarized in the frequency distribution below. Find the mean speed. Question 8 options: 1) 57.4 mph 2) 54.7 mph 3) 54.5 mph 4) 60.2 mph Save Question 9 (4 points) 9 Find the range for the given data. The manager of an electrical supply store measured the diameters of the rolls of wire in the inventory. The diameters of the rolls (in m) are listed below. Compute the range. Question 9 options: 1) 0.486 2) 0.123 3) 0.112 4) 0.473 Save Question 10 (4 points) 10 Find the midrange for the given sample data. The weights (in ounces) of 18 cookies are shown. Find the midrange. Question 10 options: 1) 1.070 2) 1.055 3) 1.11 4) 1.085 Save Question 11 (4 points) 11 Solve the problem. The heights in feet of people who work in an office are as follows. Use the range rule of thumb to find the standard deviation. Round results to the nearest tenth. Question 11 options: 1) 0.5 2) 1.2 3) 0.2 4) 0.1 Save Question 12 (4 points) 12 Answer the question, considering an event to be "unusual" if its probability is less than or equal to 0.05. If a person told you in what month he was born, would it be "unusual" to guess the date of his birth (not including the year)? Question 12 options: 1) Yes 2) No Save Question 13 (4 points) 13 Solve the problem. The data below consists of the heights (in inches) of 20 randomly selected women. Find the 10% trimmed mean of the data set. The 10% trimmed mean is found by arranging the data in order, deleting the bottom 10% of the values and the top 10% of the values and then calculating the mean of the remaining values. Question 13 options: 1) 64.8 in 2) 64.7 in 3) 51.8 in 4) 65.0 in Save Question 14 (4 points) 14 Solve the problem. Skewness can be measured by Pearson's index of skewness: If I 1.00 or I -1.00, the data can be considered significantly skewed. Find Pearson's index of skewness for the test scores below. Question 14 options: 1) -0.32 2) -0.33 3) -0.27 4) 0.32 Save Question 15 (4 points) 15 Determine whether the events are mutually exclusive. Go to a formal dinner affair. Wear blue jeans. Question 15 options: 1) Yes 2) No Save Question 16 (4 points) 16 Find the indicated probability. The probability that an event will occur is 0.5. What is the probability that the event will not occur? Question 16 options: 1) 1 2) 0.5 3) 0 4) None of these is correct. Save Question 17 (4 points) 17 Find the indicated probability. The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The frequency table below summarizes the results. If we randomly select one of the customers represented in the table, what is the probability that the waiting time is at least 12 minutes or between 8 and 15 minutes? Question 17 options: 1) 0.2 2) 0.518 3) 0.704 4) 0.446 Save Question 18 (4 points) 18 Find the mode(s) for the given sample data. 99, 57, 32, 57, 29, 99 Question 18 options: 1) 99, 57 2) 62.2 3) 57 4) 99 Save Question 19 (4 points) 19 Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. The normal monthly precipitation (in inches) for August is listed for 12 different U.S. cities. Compute the standard deviation. Question 19 options: 1) 12.03 2) 1.05 3) 1.09 4) 1.00 Save Question 20 (4 points) 20 Find the indicated probability. Among the contestants in a competition are 37 women and 27 men. If 5 winners are randomly selected, what is the probability that they are all men? Question 20 options: 1) 0.06458 2) 0.01059 3) 0.1852 4) 0.20692 Save Question 21 (4 points) 21 Estimate the probability of the event. Of 1275 people who came into a blood bank to give blood, 278 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will have high blood pressure. Question 21 options: 1) 0.137 2) 0.186 3) 0.218 4) 0.269 Save Question 22 (4 points) 22 Find the indicated probability. A sample space consists of 127 separate events that are equally likely. What is the probability of each? Question 22 options: 1) 1 2) 3) 0 4) 127 Save Question 23 (4 points) 23 Find the indicated probability. The probability that Luis will pass his statistics test is 0.65. Find the probability that he will fail his statistics test. Question 23 options: 1) 0.35 2) 1.54 3) 1.86 4) 0.33 Save Question 24 (4 points) 24 Find the standard deviation for the given data. Round your answer to one more decimal place than the original data. 15, 42, 53, 7, 9, 12, 14, 28, 47 Question 24 options: 1) 15.8 2) 29.1 3) 17.8 4) 16.6 Save Question 25 (4 points) 25 Find the standard deviation of the data summarized in the given frequency distribution. The test scores of 40 students are summarized in the frequency distribution below. Find the standard deviation. Question 25 options: 1) s = 13 2) s = 12.3 3) s = 13.7 4) s = 14.4 Save