MAT 150 Final Exam Questions and Answers 2023/2024 - Straighterline

MAT 150 Final Exam Questions and Answers 2023/2024 - Straighterline. Anais is organizing her rock collection and places each rock in one of three categories: small, medium, or large. This illustrates what level of measurement? Select one: a. nominal b. ordinal c. interval d. ratio Question 2 Incorrect 0.00 points out of 8.33 Flag question Question text Which of the following is an example of a nominal variable? Select one: a. age b. gender c. height d. IQ Question 3 Correct 8.33 points out of 8.33 Flag question Question text What sort of data are temperature measurements? Select one: a. interval b. nominal c. ordinal d. ratio Question 4 Correct 8.33 points out of 8.33 Flag question Question text Based on the graph, which statement best describes the relationship between daily high temperatures and the number of people going to the beach? Select one: a. There is no relationship. b. It is a positive linear relationship. c. It is a negative linear relationship. d. It is a curvilinear relationship. Question 5 Correct 8.33 points out of 8.33 Flag question Question text The table shows the number of train tickets Carl purchased to each station over the last month and the fare to each station. What was the average cost per ride? Select one: a. $3.60 b. $4.15 c. $5.45 d. $5.80 Question 6 Incorrect 0.00 points out of 8.33 Flag question Question text The outcomes observed in an experiment are: 2, 8, 3, 10, 4, and 9. What is the sample variance? Select one: a. 4.1 b. 7.6 c. 9.3 d. 11.6 Question 7 Correct 8.33 points out of 8.33 Flag question Question text Jason collects information about annual family income from each student at his college. He computes both the mean and median family income across all students and is surprised to find that the mean income is much higher than the median income. What is the most likely reason for the difference in the mean and the median? Select one: a. The sample size is too small. b. The median tends to produce lower estimates of central tendency. c. The median is not an appropriate estimate for annual family income’s level of measurement. d. The mean is more affected by a small number of extreme values. Question 8 Correct 8.33 points out of 8.33 Flag question Question text An instructor administers a test to a class of 30 students and observes that the scores are close to normally distributed with a mean score of 40 and a standard deviation of 10. What can you conclude from these results? Select one: a. Approximately 2/3 of the class scored between 30 and 50 on the test. b. The lowest score on the test was 30 and the highest score was 50. c. Students found the test to be difficult. d. The average student scored at the 40th percentile. Question 9 Correct 8.33 points out of 8.33 Flag question Question text Laura's quiz scores during the semester were 87, 82, 90, 92, and 84. What was her mean score? Select one: a. 79 b. 84 c. 86 d. 87 Question 10 Correct 8.33 points out of 8.33 Flag question Question text The table lists the populations and relative frequencies of car ownership in four neighboring cities. Which city has the most cars? Select one: a. Northland b. Southland c. Eastville d. Westville Question 11 Correct 8.33 points out of 8.33 Flag question Question text In the figure shown, Sample A and Sample B have the same Select one: a. median. b. quartiles. c. range. d. variance. Question 12 Correct 8.33 points out of 8.33 Flag question Question text The contingency table describes the living arrangements of students at a small college. What percentage of the students are women who live in off-campus housing? Select one: a. 21 b. 23 c. 30 d. 44 Question 13 Incorrect 0.00 points out of 8.33