Question

As a promotional gimmick, OHaganBooks.com has been selling copies of Encyclopædia Galactica at an extremely low price that is changed each week at random in a nationally televised drawing. The following table gives the frequency with which each price will be chosen and summarizes the anticipated sales. Price $6.50 $10 $14 $16 Frequency (weeks) 1 2 3 4 Weekly Sales 6,200 3,500 3,000 1,000 What is the expected value of the price of Encyclopædia Galactica?

          As a promotional gimmick, OHaganBooks.com has been selling copies of Encyclopædia Galactica at an extremely low price that is changed each week at random in a nationally televised drawing. The following table gives the frequency with which each price will be chosen and summarizes the anticipated sales.
Price $6.50 $10 $14 $16
Frequency (weeks) 1 2 3 4
Weekly Sales 6,200 3,500 3,000 1,000
What is the expected value of the price of Encyclopædia Galactica?

As a promotional gimmick, OHaganBooks.com has been selling copies of Encyclopædia Galactica at an extremely low price that is changed each week at random in a nationally televised drawing. The following table gives the frequency with which each price will be chosen and summarizes the anticipated sales.
Price 6.5010 1416
Frequency (weeks) 1 2 3 4
Weekly Sales 6,200 3,500 3,000 1,000
What is the expected value of the price of Encyclopædia Galactica?

Added by Juan H.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Keondre Parker

11/27/2023

Step 1

Step 1: The expected value of a random variable is the average of the values of the variable, weighted by their probabilities. Show more…

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As a promotional gimmick, OHaganBooks.com has been selling copies of Encyclopædia Galactica at an extremely low price that is changed each week at random in a nationally televised drawing. The following table gives the frequency with which each price will be chosen and summarizes the anticipated sales. Price $6.50 $10 $14 $16 Frequency (weeks) 1 2 3 4 Weekly Sales 6,200 3,500 3,000 1,000 What is the expected value of the price of Encyclopædia Galactica?