Answer:
0.0137
Step-by-step explanation:
Let X be the random variable that measures the number of incoming calls every ten minutes.
If the incoming calls to the system are Poisson distributed with a mean equal to 5 every 10 minutes, then the probability that there are k incoming calls in 10 minutes is

If the phone-answering system is capable of handling ten calls every 10 minutes, we want to find
P(X>10), or the equivalent 1 - P(X≤ 10).
But
1 - P(X≤ 10)= 1 -(P(X=0)+P(X=1)+...+P(X=10)) =

So, the probability that in a 10-minute period more calls will arrive than the system can handle is 0.0137
Answer:
77
Step-by-step explanation:
Answer:
Option D
Step-by-step explanation:
I solved in the picture
Hope this helps ^-^
Answer:
The sum of interior angles of given polygon is 900°
Step-by-step explanation:
A regular polygon is a n-sided figure with n sides and the length of all sides is same.
In the diagram, we have a polygon with 7 sides.
The formula given is used to calculate the sum of interior angles of a polygon

Here n is the number of sides of polygon
In the given polygon
n = 7
So,

Hence,
The sum of interior angles of given polygon is 900°