In a certain​ city, projections for the next year indicate there is a​ 20% chance that electronics jobs will increase by 1300​, a​ 50% chance that they will increase by 400​, and a​ 30% chance they will decrease by 900. Find the expected change in the number of electronics jobs in that city in the next year. The expected change is an increase of __________ jobs.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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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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In a certain​ city, projections for the next year indicate there is a​ 20% chance that electronics jobs will increase by 1300​, a​ 50% chance that they will increase by 400​, and a​ 30% chance they will decrease by 900. Find the expected change in the number of electronics jobs in that city in the next year.

The expected change is an increase of __________ jobs.

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