Answer: 11.3 minutes
Step-by-step explanation: <u>Exponential</u> <u>Distribution</u> is a distribution with function of the form:
often related to an amount of time until an event occur.
The greek letter λ is decay parameter and have a relationship with the mean:
and x is the amount of time
Probability in exponential distribution is given by
<u>Percentile</u> is a value below which a percentage of the data falls.
For the waiting line in a Piggly Wiggly checkout, 80th percentile will be
h = 11.3
<u>The 80th percentile of waiting times is </u><u>11.3 minutes.</u>
Answer:
yes it is
Step-by-step explanation:
Answer:
5x -11
Step-by-step explanation:
it says it there
Answer:
a) .3607.
b) See explanation below.
Step-by-step explanation:
The probability that the flight of the airline arrives on time is .775. The problem tells us that the events are independent and asks us what is the probability that 4 flights arrive on time.
Since the probability is independent we can simply multiply the probabilities of each flight arriving on time.
Probability that all 4 flights arrive on time = (.775)(.775)(.775)(.775) = 0.3607.
b) How realistic it is to assume that the on-time arrivals are independent?
This assumption is not very realistic, considering that if one flight is not on time, it will obviously affect all the other flights since the planes are constantly connected to each other and if the flights are using one same plane, the fact that this plane is not on-time will affect the next flight.