Question

7.6.15 Companies A, B, and C produce 20%, 40%, and 40%, respectively, of the major appliances sold in a certain area. In that area, 2% of the company A appliances, 4 and one half % of the company B appliances, and 4% of the company C appliances need service within the first year. Suppose a defective appliance is chosen at random; find the probability that it was manufactured by Company B. The probability that it came from company B is nothing. (Type an integer or decimal rounded to four decimal places as needed.)

Name: 7615 companies a b and c produce 20 40 and 40 respectively of the major appliances sold in a certain area in that area 2 of the company a appliances 4 and one half of the company b appliance 05257
Uploaded: 2022-03-25T15:03:47-08:00
Duration: 3 min 46 s
Channel: Robin Corrigan
Description: 7615 companies a b and c produce 20 40 and 40 respectively of the major appliances sold in a certain area in that area 2 of the company a appliances 4 and one half of the company b appliance 05257

          7.6.15
Companies A, B, and C produce 20%, 40%, and 40%,
respectively, of the major appliances sold in a certain area. In
that area, 2% of the company A appliances, 4 and one half % of
the company B appliances, and 4% of the company C appliances need
service within the first year. Suppose a defective appliance is
chosen at random; find the probability that it was manufactured by
Company B. The probability that it came from company B is nothing.
(Type an integer or decimal rounded to four decimal places as
needed.)

Added by Charles G.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Robin Corrigan

03/25/2022

Step 1

- Probability of needing service = (Probability of being manufactured by A * Probability of needing service from A) + (Probability of being manufactured by B * Probability of needing service from B) + (Probability of being manufactured by C * Probability of Show more…

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7.6.15 Companies A, B, and C produce 20%, 40%, and 40%, respectively, of the major appliances sold in a certain area. In that area, 2% of the company A appliances, 4 and one half % of the company B appliances, and 4% of the company C appliances need service within the first year. Suppose a defective appliance is chosen at random; find the probability that it was manufactured by Company B. The probability that it came from company B is nothing. (Type an integer or decimal rounded to four decimal places as needed.)