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Mashcka [7]
2 years ago
12

an elevator started at the first floor and went up 18 floors. it then came down 11 floors and went back up 16.at what floor was

it stopped
Mathematics
1 answer:
zzz [600]2 years ago
4 0
Started at first floor
went up 18 floors, so now we are at 1+18 or 19th floor
then cam down 11 floors, so now we are at 19-11 or 8th floor
then went up 16, so now at 16+8 or 24th floor

it stopped at 24th floor
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Answer:

<u>0.9524</u>

Step-by-step explanation:

<em>Note enough information is given in this problem. I will do a similar problem like this. The problem is:</em>

<em>The Probability of a train arriving on time and leaving on time is 0.8.The probability of the same train arriving on time is 0.84. The probability of the same train leaving on time is 0.86.Given the train arrived on time, what is the probability it will leave on time?</em>

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<u>Solution:</u>

This is conditional probability.

Given:

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Now, according to conditional probability formula, we can write:

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Arrive ∩ leave means probability of arriving AND leaving on time, that is given as "0.8"

and

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0.8/0.84 = <u>0.9524</u>

<u></u>

<u>This is the answer.</u>

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