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Talja [164]
3 years ago
6

Suppose that the average number of accidents occurring on a highway each day is 3.5. Find the probability that at least two acci

dents occur today. Find the probability that at most one accident occurs today.
Mathematics
2 answers:
BlackZzzverrR [31]3 years ago
7 0

Answer: 0.1359

Step-by-step explanation:

This is a Poisson distribution. The formula for calculating Poisson distribution is given as :

P (X = x) = \frac{e^{-λ}λ^{x}}{x!}

λ = 3.5

To find the probability that at most one accident occur today implies that , accident might not happen at all , the maximum accident that can happen is 1, substituting this into the formula , we have

P(X=0) = \frac{e^{-3.5}3.5^{0} }{0!}

P(X=0) = 0.0302

P(X=1) =   \frac{e^{-3.5}3.5^{1} }{1!}

P(X=1) = 0.1057

Therefore , the probability that at most one accident occurs today.

= 0.0302 + 0.1057

= 0.1359

P(x=2) =   \frac{e^{-3.5}3.5^{2} }{2!}

P(X=2) = 0.1850

irina1246 [14]3 years ago
3 0

Answer:

48 yards

Step-by-step explanation:

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Viktor [21]

Answer:

<h2> (2, -1)</h2>

Step-by-step explanation:

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First we have to differentiate the function as shown;

f'(x)= 3(8)x^{3-1}- 2(12)x^{2-1} - 48x^{1-1}\\  \\f'(x) = 24x^2 - 24x-48x^0\\\\f'(x) = 24x^2 - 24x-48\\\\At \ the\turning\ point\ f'(x)= 0\\24x^2 - 24x-48 = 0\\\\\\

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8 0
3 years ago
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snow_tiger [21]

Answer:

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Step-by-step explanation:

3 0
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A biologist tags 25 birds with a band on their foot and lets them go back into the wild. The next year 100 total birds are captu
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Answer:

We can estimate a population of 500 birds.

Step-by-step explanation:

We can estimate the total bird population using a rule of three with the information given:

If we find 5 birds with the foot band among 100 birds captured, how many birds there are in total if inicially we put foot bands in 25 birds?

5 birds with foot band -> 100 birds captured

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We can estimate a population of 500 birds.

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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