A factory manager collected data on the number of equipment breakdowns per day. From those data, she derived the probability distribution shown to the right, where W denotes the number of breakdowns on a given day. Answer parts a through c. w 0 1 2 P(W=w) 0.65 0.20 0.015 a. Determine μW and σW. μW= (Type an integer or a decimal.) Determine μW and σW. μW=0.350.35 (Type an integer or a decimal.) σW= (Round to three decimal places as needed.) b. On average, how many breakdowns occur per day? (Type an integer or a decimal.) c. About how many breakdowns are expected during a 1-year period, assuming 250 work days per year? (Type an integer or a decimal.)
A factory manager collected data on the number of equipment breakdowns per day. From those data, she derived the probability distribution shown to the right, where W denotes the number of breakdowns on a given day. Answer parts a through c. w 0 1 2 P(W=w) 0.65 0.20 0.015 a. Determine μW and σW. μW= (Type an integer or a decimal.) Determine μW and σW. μW=0.350.35 (Type an integer or a decimal.) σW= (Round to three decimal places as needed.) b. On average, how many breakdowns occur per day? (Type an integer or a decimal.) c. About how many breakdowns are expected during a 1-year period, assuming 250 work days per year? (Type an integer or a decimal.)
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 9CR
Related questions
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A factory manager collected data on the number of equipment breakdowns per day. From those data, she derived the probability distribution shown to the right, where W denotes the number of breakdowns on a given day. Answer parts a through c.
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P(W=w)
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0.65
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a.
Determine μW and σW.μW=
(Type an integer or a decimal.)Determine
μW
and
σW.
μW=0.350.35
(Type an integer or a decimal.)σW=
(Round to three decimal places as needed.)b.
On average, how many breakdowns occur per day?(Type an integer or a decimal.)
c.
About how many breakdowns are expected during a 1-year period, assuming 250 work days per year?(Type an integer or a decimal.)
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