Question

A Poisson distribution has λ = 4.7.   (a )[2] Use the Excel function POISSON.DIST() and 5...

A Poisson distribution has λ = 4.7.   (a

)[2] Use the Excel function POISSON.DIST() and 5 decimals to fill in the following table: 4 x 0 1 2 3 4 5 6 7 8 9 10 11 12+ P(x)

(b)[2] Use a column chart to visualize the probability distribution above. How is it skewed?

(c)[1] Find P(x ≤ 3). [steps & result]

(d)[1] Find P(x ≥ 7). [steps & result]

(e)[2] Find P(5 < x ≤ 9). [steps & result]

(f)[2] Expected frequency (EF) = n × probability. Given a hypothetical sample of n = 270, complete the following expected frequency table using 5 decimals: x 0 1 2 3 4 5 6 7 8 9 10 11 12+ EF(x)  

I've already figured out A-D, I just need help with E and F. Thank you!

Math   Statistics-And-Probability   
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Answer #1

Solution:

We have the below probability distribution:

(e)

  

(f)

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