The number of people who use the atm at night outside your local bank branch can be modeled as a poisson distribution. on average 1.2 customers arrive every hour (late at night). you park outside the bank to count the customers. what is the probability that in the hour between 10 and 11 pm at most 3 customers arrive?

Step-by-step explanation:

First we have to remember the Poisson distribution equation which is:

Where L is defined by the mean in this case is 1.2

And r is the number of occurrences, in this case is 0,1,2,3 because we want to know the probability that at most 3 costumers arrive in one hour

Now we apply the formula with the given data and we will obtain

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify