Answer:
Step-by-step explanation:
Let X be the number of lightning strikes in a year at the top of particular mountain.
X follows Poisson distribution with mean μ = 3.8
We have to find here the probability that in randomly selected year the number of lightning strikes is 0
The Poisson probability is given by,
P(X=k) =
Here we have X=0, mean =3.8
Hence probability that X=0 is given by
P(X=0) =
P(X=0) =
P(X=0) = 0.0224
The probability that in a randomly selected year, the number of lightning strikes is 0 is 0.0224
5.000or just 5
Hope this helps
Answer:
616 ft²
Step-by-step explanation:
Since the floor of the tepee is circular, we find its area by using the area of a circle.
So, A = πr² where π = 22/7 and r = radius of circular floor = 14 feet
So, substituting the values of the variables into the equation, we have
A = πr²
A = 22/7 × (14 ft)²
A = 22/7 × 196 ft²
A = 22 × 28 ft²
A = 616 ft²
So, the area of the floor of the tepee is 616 ft²
52000 times .12 equals 6240
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