I think the answer is A. 7 5/6
Answer:
The probability that there are 8 occurrences in ten minutes is
option B. 0 .0771
Step-by-step explanation:
Given:
Random Variable = x
Mean number of occurrences in ten minutes is 5.3.
The probability of an occurrence is the same in any two time periods of an equal length
To Find:
The probability that there are 8 occurrences in ten minutes = ?
Solution:
Let X be the number of occurrences of the event X


Possion of distribution is given by ,

Substituting the values,



P(X=8) = 0.0771
This is false because when you multiply a number by 10, you simply move the decimal place one to the right. In this case, when we multiply 0.02 by 10, we get .2. Had we multiplied 0.02 by 100, we would have gotten 2.
2x + 3y = -14 ------------ (1)
y = 6x + 22 --------------(2)
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Sub (2) into (1):
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2x + 3(6x + 22) = -14
2x + 18x + 66 = -14
20x = -80
x = -4
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Sub x = -4 into (2):
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y = 6(-4) + 22
y = -2
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Answer: x = -4, y = -2
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