3 years ago

I need a answer fast

Mathematics

1 answer:

kykrilka [37]3 years ago

8 0

Answer:

Step-by-step explanation:

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During off hours, cars arrive at a tollbooth on the East-West toll road at an average rate of 0.5 cars per minute. The arrivals

Norma-Jean [14]

Answer:

$P(X=3) = 2.5^3 \frac{e^{-2.5}}{3!}=0.214$

Step-by-step explanation:

Definitions and concepts

The Poisson process is useful when we want to analyze the probability of ocurrence of an event in a time specified. The probability distribution for a random variable X following the Poisson distribution is given by:

$P(X=x) =\lambda^x \frac{e^{-\lambda}}{x!}$

And the parameter $\lambda$ represent the average ocurrence rate per unit of time

For this case we know that $\lambda =0.5 cars/min$

And we want the probability that during the next five minutes, three cars will arrive, so then our rate becomes:

$\lambda = 0.5 \frac{cars}{min}* 5 min = 2.5 cars$

And we want this probability:

$P(X=3)$

And if we use the pmf we got:

$P(X=3) = 2.5^3 \frac{e^{-2.5}}{3!}=0.214$

6 0

4 years ago

Jonathan had a balance of $120 dollars in his bank account at the beginning of the month. During the first week of the month he

tiny-mole [99]

Answer:

$47

Step-by-step explanation:

$120 starting out and he spent $45 + $28 of that $120

so 120-45+28=47

7 0

3 years ago

A watering can dispenses water at the rate of 0.25 gallon per minute. The original volume of water in the can was 6 gallons. Whi

Nikolay [14]

Out of all of these, I believe your best bet is A :)

4 0

3 years ago

Read 2 more answers

Anyone can help me please???

romanna [79]

To find the Area of the Cylinder or the coke can you would use the formula A=2πrh+2πr2. R being the radius and H being the height If you plug in the variables 3 for the radius and 8 for the height. You will get 207.35 and you will divide that by your total area. You can make 12(12.90089) cans with the allotted amounted of sheet metal.

4 0

4 years ago

Show your work please

liubo4ka [24]

Can you make the picture bigger it’s not letting me zoom

3 0

3 years ago