A consumer organization estimates that over a 1-year period 16% of cars will need to be repaired once, 9% will need repairs
1 answer:
Answer:
A consumer organization estimates that over a 1-year period 16% of cars will need to be repaired once, 9% will need repairs twice, and 3% will require three or more repairs..
We have the cars that do not need repair =%
(16+9+3=28% cars need repair of some sort)
What is the probability that :
a) neither will need repair?
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b) both will need repair?
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c) at least one car will need repair?
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Attached the solution with work shown.
<h2>Explanation:</h2><h2 />
The complete question is shown in the figure below. As you can see one square units is well shown in the graph. So we can conclude that the distance between two consecutive points is 1 unit. If so, then we can calculate the area of the parallelogram as follows:
Then, finding CB by Pythagorean Theorem:
And:
Therefore: