3.2-6. A certain type of aluminum screen 2 feet in width has, on the average, three flaws in a 100-foot roll. (a) What is the probability that the first 40 feet in a roll contain no flaws? (b) What assumption did you make to solve part (a)?

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Need help with this Intro to probability and statistics homework problem. Make sure your handwriting is neat and readable.

 

 

3.2-6. A certain type of aluminum screen 2 feet in width
has, on the average, three flaws in a 100-foot roll.
(a) What is the probability that the first 40 feet in a roll
contain no flaws?
(b) What assumption did you make to solve part (a)?
Transcribed Image Text:3.2-6. A certain type of aluminum screen 2 feet in width has, on the average, three flaws in a 100-foot roll. (a) What is the probability that the first 40 feet in a roll contain no flaws? (b) What assumption did you make to solve part (a)?
Expert Solution
Step 1

Given that a certain type of aluminum screen 2 feet in width has on the average, three flaws in a 100 feet roll.

Now for finding the required probability we can use the Poisson distribution formula 

       Probability homework question answer, step 1, image 1

 

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