A rectangular poster has an area of 504 centimeters the width is 14 centimeters how long is the poster
2 answers:
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Answer:
a) We have the mean number of events is interval(5.3 events in 10 minutes), which constitutes the Poisson probability distribution.
b) 5.3
c) 5.3
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given time interval.
a. What probability distributions' properties is this?
We have the mean number of events is interval(5.3 events in 10 minutes), which constitutes the Poisson probability distribution.
b. What is the expected value of the random variable x?
It is known that the mean number of occurrences in ten minutes is 5.3.
So the mean is
c. What is the variance of the random variable x?
In the Poisson probability distribution, the variance is the same as the mean. So the variance is 5.3.
<h2>Answer :</h2>
A wheel is a circle.
Given diameter of wheel = 2.8 m
Then radius of the wheel = 2.8/2 = 1.4 m
Now we know that , circumference of circle =
Circumference of wheel = 2 × 22/7 × 1.4
Circumference of wheel = 8.8 m
<u>From the above we can conclude that ;</u>
1 revolution = 8.8 m
x revolution = 484 km = 484000 m
<h3>Thus, </h3>