I believe your answer should be $0.95
Of course, I could be wrong, and I apologise if I am.
Answer:
Answer is B and D.
Step-by-step explanation:
forgive me if I'm wrong!
I hope it's helpful!
C you reduce 4/12 to 2/6 which then is 1/3
Answer:
0.917915
Step-by-step explanation:
Exponential distribution is expressed as it follows
F (y,λ) = 1 – e ^(- λ(y)
)
Where λ is equal to 1/ population mean
So λ = 1/2.8 = 0.357
Let y be the length of time a costumer wait on hold
Now, let´s find the value for y = 7 minutes, which is the proportion of costumer that wait on hold
P (y<7) = 1 – e^(- .357*(7)
)
P (y<7) = 0.917915