Answer:
P(X = 3) = 0.14680064
Step-by-step explanation:
Formula=============================
……………………………………………………………………..
Given :
n = 8
p = 0.2
1 - p = 1 - 0.2 = 0.8
k = 3
Then
The answer is x=13 because the equations equal each other
To solve the problem we must know the Basic Rules of Exponentiation.
<h2>Basic Rules of Exponentiation</h2>
The solution of the expression is .
<h2>Explanation</h2>
Given to us
Solution
We know that 16 can be reduced to ,
Using identity ,
Using identity ,
Solving further
Using identity ,
Hence, the solution of the expression is .
Learn more about Exponentiation:
brainly.com/question/2193820
Answer:
The required probability is 0.55404.
Step-by-step explanation:
Consider the provided information.
The number of typographical errors on a page of the first booklet is a Poisson random variable with mean 0.2. The number of typographical errors on a page of second booklet is a Poisson random variable with mean 0.3.
Average error for 7 pages booklet and 5 pages booklet series is:
λ = 0.2×7 + 0.3×5 = 2.9
According to Poisson distribution:
Where is average number of events.
The probability of more than 2 typographical errors in the two booklets in total is:
Substitute the respective values in the above formula.
Hence, the required probability is 0.55404.
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