162 think of a square like a pool both sides have to be the same
Answer:
0.2008 = 20.08% probability that among 150 calls received by the switchboard, there are at least two wrong numbers.
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 interval.
The probability that a call received by a certain switchboard will be a wrong number is 0.02.
150 calls. So:
Use the Poisson distribution to approximate the probability that among 150 calls received by the switchboard, there are at least two wrong numbers.
Either there are less than two calls from wrong numbers, or there are at least two calls from wrong numbers. The sum of the probabilities of these events is 1. So
We want to find . So
In which
Then
0.2008 = 20.08% probability that among 150 calls received by the switchboard, there are at least two wrong numbers.
Answer:
y= (-1/8)X-(3/8)
Step-by-step explanation:
8y=-X-3
divide over the 8
y=(-1/8)X-(3/8)
Hey there! :D
Find the length and width of the rectangle.
Length= 7 Width= 5
5*7= 35
Triangle= 1/2*b*h
base= 7 height= 2 (if you were to draw a line from the vertex to the base of the triangle, it would be 2 units)
1/2*7*2
1/2*14
7
35+7= 42
The area equals 42.
I hope this helps!
~kaikers
Answer: -13
Step-by-step explanation:
just substitute the letters for the numbers.
5(-2) - 3(2) -(-3)
then, remove the parenthesis.
-10 - 6 + 3
finally, just calculate it.
-13