A company gives each worker a cash bonus every Friday, randomly giving a worker an amount with these probabilities: $10 - 0.75, $50 - 0.25. Over many weeks, what is a worker's expected weekly bonus?   (10 + 50) x (0.75 x 0.25) = $11.5   Cannot say as the number of weeks is not provided.   10 x 0.25 + 50 x 0.75 = $40   10 x 0.75 + 50 x 0.25 = $20

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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  1. A company gives each worker a cash bonus every Friday, randomly giving a worker an amount with these probabilities: $10 - 0.75, $50 - 0.25. Over many weeks, what is a worker's expected weekly bonus?

     
    1. (10 + 50) x (0.75 x 0.25) = $11.5

       
    2. Cannot say as the number of weeks is not provided.

       
    3. 10 x 0.25 + 50 x 0.75 = $40

       
    4. 10 x 0.75 + 50 x 0.25 = $20 

       
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