Probability of an item I produced by Machine A is 0.3. And the probability of an item I produced by Machine B is 0.4. Each machine will produce 20 items. The price of an item I is 80$ The price of an item II is 50$ Find the expectation of the price if selling these 40 items.

Probability of an item I produced by Machine A is 0.3. And the probability of an item I produced by Machine B is 0.4. Each machine will produce 20 items. The price of an item I is 80$ The price of an item II is 50$ Find the expectation of the price if selling these 40 items.

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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Question

Probability of an item I produced by Machine A is 0.3.

And the probability of an item I produced by Machine B is 0.4.

Each machine will produce 20 items.

The price of an item I is 80$

The price of an item II is 50$

Find the expectation of the price if selling these 40 items.

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