which is not a property of the standard normal distribution
X Meme SMAT 205 Final Exam - Page 2 of 7 Spring 2021 Multiple Choice Questions 1. (5 points) Which is not a property of the standard normal distribution A. It's symmetric about the mean B. It's uniform C. It's bell-shaped D. It's unimodal E. None of the other choices 2. (5 points) Determine whether descriptive or inferential statistics were used. In 2010, a total of 68,905 people died from diabetes. (Source: Centers for Disease Control and Prevention) A. Descriptive B. Inferential 3. (5 points) State whether the variable is discrete or continuous. The blood pressures of a group of students the day before their final exam A. Discrete B. Continuous 4. (5 points) How many outcomes are there in a binomial experiment? A. 0 B. 2 C. 1 D. It varies E. None of the other choices 5. (5 points) Find the class boundaries, midpoint, and width for the class. 45 - 49 A. Boundaries: 45 - 49, midpoint: 47, width: 4 B. Boundaries: 44.5 - 49.5, midpoint: 47.5, width: 4 C. Boundaries: 44.5 - 49.5, midpoint: 47, width: 5 D. Boundaries: 44.5 - 49.5, midpoint: 47, width: 4 E. None of the other choices OOOX Meme SMAT 205 Final Exam - Page 3 of 7 Spring 2021 6. (5 points) The sample space for tossing 3 coins consist of how many outcomes? A. 2 B. 4 C. 6 D. 8 E. None of the other choices 7. (5 points) For the data set below, find the IQR (inter quartile range). 65, 74, 74, 67, 67, 71, 63, 71, 60, 75, 77 A. 9 B. 65 C. 5 D. 74 E. None of the other choices 8. (5 points) For t test, one uses instead of a. A. n B. s C. x2 D. t E. None of the other choices 9. (5 points) The degrees of freedom for the chi-square test for variance or standard devi- ations are A. 1 B. n C. n-1 D. t E. None of the other choices 10. (5 points) Which of the following cannot be a probability? OOOX Meme w. None of the other choices 10. (5 points) Which of the following cannot be a probability? SMAT 205 Final Exam - Page 4 of 7 Spring 2021 A. 8/9 B. 9/10 C. 9/2 D. 2/9 E. None of the other choices 11. (5 points) Determine whether the following is a probability distribution. If not, identify the requirement that is not satisfied. x P(x) 0 0.280 1 0.288 2 -0.045 3 0.061 4 0.288 5 0.128 A. Probability distribution B. Not probability distribution. The sum of P(x)'s is not 1 C. Not probability distribution. One of the P(x)'s is negative D. None of the other choices 12. (5 points) Find the value of a that corresponds to a level of confidence of 856. A. 0.15 B. 0.015 C. 15 D. 0.85 E. None of the other choices OOO
