Take a Test – Daunyelle Robinson – Google Chrome – X mathxl.com/Student/PlayerTest.aspx?testld=2335125868centerwin=yes 2021 Fall Session A Math 201-10 Daunyelle Robinson & | 10/17/21 1:36 AM Test: Final Exam Question 6 This Test: 15 pts possible Submit Test In the probability distribution to the right, the random variable X represents the number of marriages an individual aged 15 years or older has been involved in. Complete parts (a) through (f) below. P(x) 0.267 0.577 0.120 DAWN – 0.031 0.004 0.001 (a) Verify that this is a discrete probability distribution. This is a discrete probability distribution because between ] and ], inclusive, and the V of the probabilities is]. (Type whole numbers. Use ascending order.) (b) Draw a graph of the probability distribution. Describe the shape of the distribution. Graph the probability distribution. Choose the correct graph below. O A. B. O c. OD. 0.5- 0.5- O 0.3 Probability 0.3- Probability Probability 20.2- 0.1 0.1- 012345 012345 012345 012345 Number of Marriages Number ofMarriages Number of Marriages Number of Marriages Describe the shape of the distribution. The distribution and is (c) Compute and interpret the mean of the random variable X. Hx = |marriages (Type an integer or a decimal. Do not round.) Which of the following interpretations of the mean is correct? O A. The observed number of marriages will be less than the mean number of marriages for most individuals. O B. If any number of individuals aged 15 year or older were surveyed, one would expect the mean number of marriages to be the mean of the random variable. O C. If many individuals aged 15 year or older were surveyed, one would expect the mean number of marriages to be the mean of the random variable O D. The observed number of marriages will be equal to the mean number of marriages for most individuals (d) Compute the standard deviation of the random variable X. StatCrunch Next 12:36 AM Type here to search O w 48F Clear ~ 9 ( 1) : 10/17/2021 16… Show moreMathStatistics and Probability MATH 201
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