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Roman55 [17]
3 years ago
14

Which statements are correct about the two-way

Mathematics
1 answer:
Vlad [161]3 years ago
5 0

Answer:A,C,E

Step-by-step explanation:

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Whats the answer? I dont get it?
SSSSS [86.1K]
It’s the first answer choice
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2 years ago
Grasshoppers are distributed at random in a large field according to a Poisson process with parameter a 5 2 per square yard. How
HACTEHA [7]

In this question, the Poisson distribution is used.

Poisson distribution:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

Parameter of 5.2 per square yard:

This means that \mu = 5.2r, in which r is the radius.

How large should the radius R of a circular sampling region be taken so that the probability of finding at least one in the region equals 0.99?

We want:

P(X \geq 1) = 1 - P(X = 0) = 0.99

Thus:

P(X = 0) = 1 - 0.99 = 0.01

We have that:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-5.2r}*(5.2r)^{0}}{(0)!} = e^{-5.2r}

Then

e^{-5.2r} = 0.01

\ln{e^{-5.2r}} = \ln{0.01}

-5.2r = \ln{0.01}

r = -\frac{\ln{0.01}}{5.2}

r = 0.89

Thus, the radius should be of at least 0.89.

Another example of a Poisson distribution is found at brainly.com/question/24098004

3 0
3 years ago
How long will it take a car to travel 400 miles at an average rate of 50mph
wel
The answer is 8 hours
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3 years ago
Please help for Algebra II
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Answer:

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3 years ago
2<br>It costs £0.75 to buy 5 bananas.<br>Work out how much it would cost to buy 7 bananas.​
Sophie [7]
£.075/5= £0.15
0.15x7= £1.05

7 bananas is £1.05
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3 years ago
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