Assume the small number of planes arriving at a given airport follows a distribution Poisson at a rate of α = 8 per hour. Then the number of small planes arriving in one
time interval t is a random variable with Poisson distribution with parameter µ = 8t.
a. Find the probability that exactly 6 small planes arrive within the time interval
1 hour; At least 6? At least 10?
b. Calculate the expected value and standard deviation of the number of small aircraft arriving in
90 minute period.

i think c. but don't trust it.

step-by-step explanation:

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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table 3 represents a direct variation function. : )

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