Two families went to Rollercoaster World. The Brown family paid 170 for 3 children and 2 adults. The Peckham family paid 360 for
1 answer:
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Answer:
a. P(X ≤ 5) = 0.999
b. P(X > λ+λ) = P(X > 2) = 0.080
Step-by-step explanation:
We model this randome variable with a Poisson distribution, with parameter λ=1.
We have to calculate, using this distribution, P(X ≤ 5).
The probability of k pipeline failures can be calculated with the following equation:
Then, we can calculate P(X ≤ 5) as:
The standard deviation of the Poisson deistribution is equal to its parameter λ=1, so the probability that X exceeds its mean value by more than one standard deviation (X>1+1=2) can be calculated as:
<h2>Hello!</h2>
The answers are:
- Length
- Width
- Area
We are given the perimeter of a rectangular mat, and we are asked to find the area, and write an equation to determine the length, if feet, of the mat. To solve this problem we need to remember the equation of the perimeter of a rectangle, which is:
Using the given information we have,
Also, we know that the length is twice the width, so:
Then, substituting the second equation into the first equation, we can find the width of the mat.
Substituting, we have:
\\width=\frac{36feet}{6} =6feet[/tex]
Then, substituting the width into the second equation, we can find the length of the mat,
Substituting, we have:
Then, finding the area, we have:
Have a nice day!