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Ne4ueva [31]
3 years ago
8

The travel time for a college student traveling between her home and her college is uniformly distributed between 40 and 90 minu

tes.
The probability that she will finish her trip in 80 minutes or less is _____.
Mathematics
2 answers:
m_a_m_a [10]3 years ago
8 0

Answer:

0.8 or 80%

Step-by-step explanation:

Since the time is uniformly distributed, every possible travel time has the same likelihood of occurring.

Lower boundary (L) = 40 minutes

Upper boundary (U) = 90 minutes

The probability that a student finishes her trip in 80 minutes or less is:

P(t\leq 80) = \frac{80-L}{U-L}=\frac{80-40}{90-40}\\P(t\leq 80) = 0.8=80\%

The probability is 0.8 or 80%.

sasho [114]3 years ago
7 0

Answer:

80%

Step-by-step explanation:

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(−6m)+(−40+−1)=7m−2

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What mistake I guess Keith did make is he subtracted 2 from -39 which equaled to -37 which caused him divide -37 by 13 when it should have been 39 divided by 13 because he should have left 39 alone and not have subtracted 2 from it also it should not have been negative basically what I'm trying to say is that he did his division and subtraction wrong.

 

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3 years ago
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2 years ago
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<h3>Answer: Choice B</h3>

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Answer:

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Step-by-step explanation:

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