help with statistics 213W18 Assignment 1: Problem 9 Previous Problem Problem Lis
ID: 3354029 • Letter: H
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help with statistics
213W18 Assignment 1: Problem 9 Previous Problem Problem List Next Problem (1 point) Recent crime statistics collected over the past year reveal the following figures: 80% of all people arrested were male, 13% of all people arrested were under the age of 18,8% of all people arrested were female and under the age of 18. Let M repesent the event that the person arrested is male, and U18 represent the event that the person arrested is under the age of 18 Part (a) Complete the table below. Use two decimals in each of your answers. Row Probabilities U18 U18 olumn Probabiliti 0 Part (b) A person who was arrested in the past year is randomly chosen. What is the probability that this person is male or under the age of 18? Enter your answer to two decimals. Part (c) Find the probability that the person chosen in (b) is neither male nor under the age of 18. Use two decimals in your answer Part (d) What percentage of all people arrested in the past year are male and at least 18 years of age? Enter your answer as a decimal to two places. Part (e) Are the events M and U18 mutually exclusive events? Select the most appropriate reason below. O A. M and U 18 are mutually exclusive events, because P(M n UH) = P(M)P(U18). B. M and U 18 are mutually exclusive events, because P(M U UH) = 0 0 C. M and U 18 are mutually exclusive events, because P(M n UH) = 0 o D. M and U18 are not mutually exclusive events, because P(M n UH) 0 E. M and U18 are not mutually exclusive events, because P(M n UH) 0 P(MPU 18).Explanation / Answer
a)from given information:
b)
P(M or U18) =0.05+0.75+0.08 =0.88
c)probability =0.12
d) probability =0.75
e) option D is correct
M Mc total U18 0.05 0.08 0.13 U18' 0.75 0.12 0.87 total 0.8 0.2 1Related Questions
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