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3 years ago

15

Suppose that commercial airplane crashes in a certain country occur at the rate of 2.5 per year. what is the probability that fo

ur or more crashes will occur next year?

1 answer:

lesya [120]3 years ago

4 0

The poisson distribution applies here.
$\lambda=2.5$
$P(X=4)=\frac{e^{-2.5}\times2.5^{4}}{4!}=0.134$

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denpristay [2]

Answer:

85 m

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3 years ago

Which choices are equivalent to the exponential expression below? Check all that apply. (4/5)^3

VladimirAG [237]

Answer:

A, C, D

Step-by-step explanation:

Remember: Exponents are simply repeated multiplication.

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Option D applies because:

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2 years ago

Which is a multiple of 15

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3 years ago

The sum of two numbers is 17, and their difference is 29. What are the two numbers?

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X + y = 17
x - y = 29

x = 17 - y
x - y = 29

x = 17 - y
17 - y - y = 29

x = 17 - y
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x = 17 - y
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y = -6

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y = -6

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