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Comment Post new question Expert answers in as little as 30 minutes Continue to edit and attach image(s). People who viewed this also viewed these solutions Introductory Statistics (0th Edition) Barbara Illowsky Find your book Statistics and Probability tutors who can help right now Scott M. Cornell University 400 Bayode A. University of Texas in Tyler 226 Andrea L. Ohio State 34 See more tutors ABOUT CHEGG Media Center Chegg For Good College Marketing Privacy Policy Your CA Privacy Rights Terms of Use General Policies Intellectual Property Rights Investor Relations Enrollment Services RESOURCES Site Map Mobile Publishers Join Our Affiliate Program Advertising Choices TEXTBOOK LINKS Return Your Books Textbook Rental eTextbooks Used Textbooks Cheap Textbooks College Textbooks Sell Textbooks STUDENT SERVICES Chegg Coupon Scholarships Career Search Internships College Search COMPANY Chegg College Blog Jobs Customer Service Give Us Feedback Become a Tutor LEARNING SERVICES Online Tutoring Chegg Study Help Solutions Manual Tutors by City GPA Calculator Test Prep . Chegg Plants Trees PayPal TRUSTe online privacy certification BBB © 2003-2016 Chegg Inc. All rights reserved. Over 6 million trees planted . Given the probability distributions shown to the right, complete the following parts. a. Compute the expected value for each distribution. b. Compute the standard deviation for each distribution. c. Compare the results of distributions A and B. Distribution A Distribution B X P(X) X P(X) 0 0.060.06 0 0.490.49 1 0.100.10 1 0.200.20 2 0.150.15 2 0.150.15 3 0.200.20 3 0.100.10 4 0.490.49 4 0.060.06 a. What is the expected value for distribution A? muequals= nothing (Type an integer or decimal rounded to three decimal places as needed.) •
Explanation / Answer
What is the expected value for distribution A?
E(X) = 0 * 0.06 + 1*0.100 + 1*0.200 + 2*0.150 + 3*0.200 + 3*0.100 + 4*0.490 + 4*0.06
E(X) = 3.7