Question 1174036: (a) The probability es that a customer will purchase a new car from Green, white, red or blue color are respectively 0.11, 0.14, 0.22 and 0.25. Find the probability that the new customer will not purchase car from these colors.
(b) The manufacturer of television tubes has two types of tubes, which are Tube A and Tube B. The Mean life times of both tubes are 1675 and 1755 hours respectively. The Standard deviations are 255 and 275 hours respectively. Which tube has greater Relative Dispersion?
Answer by ikleyn(52847)   (Show Source):
You can put this solution on YOUR website! .
(a) The probability es that a customer will purchase a new car from Green, white, red or blue color are respectively
0.11, 0.14, 0.22 and 0.25. Find the probability that the new customer will not purchase car from these colors.
(b) The manufacturer of television tubes has two types of tubes, which are Tube A and Tube B.
The Mean life times of both tubes are 1675 and 1755 hours respectively.
The Standard deviations are 255 and 275
hours respectively. Which tube has greater Relative Dispersion?
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Just the very first question (a) is formulated INCORRECTLY.
The correct formulation should be THIS
"Find the probability that the new customer will purchase a car of different color."
In a way, how question (a) is posed in your post, it CAN NOT be answered.
Be accurate with YOUR LANGUAGE when you create YOUR problem.
And PLEASE do not explain to me about your teacher . . . and so on bla-bla-bla . . .
From the text, it is ABSOLUTELY CLEAR -- W-H-O-- created the problem.
Have a nice day (!)
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