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Category > Statistics Posted 15 Jun 2017 My Price 7.00

The probability that there is at least one error in an accounts statement prepared by

 

1. The probability that there is at least one error in an accounts statement prepared by A is 0.2 and for B and C are 0.25 and 0.4 respectively. A, B and C prepare 10, 16 and 20 statements respectively. Find the expected number of correct statements in all.

2. Three coins whose faces are marked as 1 and 2 are tossed. What is the expectation of the total value of numbers on their faces?

 

 

 
 

Answers

Alpha Geek
(8)
Status NEW Posted 15 Jun 2017 03:06 PM My Price 7.00

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Attachments

file 1497539773-1904727_1_636330864015534456_Joint-probability.xlsx preview (170 words )
19-----------047-----------27&-----------amp-----------;am-----------p;i-----------nfo-----------Id=-----------334-----------072-----------Joi-----------nt -----------Pro-----------bab-----------ili-----------ty1-----------. T-----------he -----------pro-----------bab-----------ili-----------ty -----------tha-----------t t-----------her-----------e i-----------s a-----------t l-----------eas-----------t o-----------ne -----------err-----------or -----------in -----------an -----------acc-----------oun-----------ts -----------sta-----------tem-----------ent----------- pr-----------epa-----------red----------- by----------- A -----------is -----------0.2----------- an-----------d f-----------or -----------B a-----------nd -----------C a-----------re -----------0.2-----------5 a-----------nd -----------0.4----------- re-----------spe-----------cti-----------vel-----------y. -----------A, -----------B a-----------nd -----------C p-----------rep-----------are----------- 10-----------, 1-----------6 a-----------nd -----------20 -----------sta-----------tem-----------ent-----------s r-----------esp-----------ect-----------ive-----------ly.----------- Fi-----------nd -----------the----------- ex-----------pec-----------ted----------- nu-----------mbe-----------r o-----------f c-----------orr-----------ect----------- st-----------ate-----------men-----------ts -----------in -----------all-----------.AB-----------CNu-----------mbe-----------r o-----------f s-----------tat-----------eme-----------nts----------- pr-----------epa-----------red-----------pro-----------bab-----------ili-----------ty -----------tha-----------t t-----------her-----------e i-----------s a-----------t l-----------eas-----------t o-----------ne -----------err-----------or -----------in -----------an -----------acc-----------oun-----------ts -----------sta-----------tem-----------ent-----------pro-----------bab-----------ili-----------ty -----------tha-----------t t-----------her-----------e i-----------s
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