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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
Answer:
24.46
Step-by-step explanation:
Answer:
-8
Step-by-step explanation:
-21-(-13)
=-21+13
=-8 is the answer......
That's easy if there is 100 chairs there would be 10 rows with ten chairs in each row