A project has estimated optimistic (a), most likely (m) and pessimistic (b) times for activity Das 7, 8 and 14 days, respectively. What is the mean AND variance for activity D, respectively(to 1 decimal place):Select one:a. 8.8 and 1.2b. 8.5 and 0.7O c. 8.8 and 0.7d. 9.7 and 1.4

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Answered: A project has estimated optimistic (a),…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A project has estimated optimistic (a), most likely (m) and pessimistic (b) times for activity D as 7, 8 and 14 days, respectively. What is the mean AND variance for activity D, respectively (to 1 decimal place): Select one: a. 8.8 and 1.2 b. 8.5 and 0.7 C. 8.8 and 0.7 d. 9.7 and 1.4