Answer:Pois(ln(200))
Step-byy-step explanation:
Let N be the number of received calls in a day
That is
N∼Pois(λ).
0.5% = 0.5/100 = 1/200 of no calls
P(N=0)=e^−λ=1/200
-λ=e^(1/200)
λ=in(200)
Our number of calls in a day is distributed Pois(ln(200)).
Answer:
£60
Step-by-step explanation:
Let 
be the original price.
X2 is double the amount of x1
Answer:
2n - 7 = 3n - 3
Step-by-step explanation:
Just count the n's and the (-1)'s
