You can notice that 14 is 7 time 2, so the answer is 15*2=30. Also, you can use cross multiplication to find your answer.
Answer:
It would be D
Step-by-step explanation:
Answer:
44°
Step-by-step explanation:
< FXO = ½× 88° = 44°
______
Answer:
a) (iv) Poisson.
b) E(X)=V(X)=λ=4.8
c) E(Y)=24,000
V(Y)=120,000,000
Step-by-step explanation:
We can appropiately describe this random variable with a Poisson distribution, as the probability of having a pothole can be expressed as a constant rate per mile (0.16 potholes/mile) multiplied by the stretch that correspond to the county (30 miles).
The parameter of the Poisson distribution is then:
b) The expected value and variance of X are both equal to the parameter λ=4.8.
c) If we define Y as:
the expected value and variance of Y are: