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Applied Mathematics
 Online Tutoring : Forum : Homework Help - Mathematics : Applied Mathematics
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Eyan
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Joined: 11 September 2007
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Posted: 11 September 2007 at 11:37am | IP Logged Quote Eyan

the results of a study shows that20%of the pupils in a city cycles to school.if8 people from the city r chosen at random, the probability..

1.exactly2 of them cycle to school

2.less that3 of them cycle to school.

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Eyan
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Joined: 11 September 2007
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Posted: 11 September 2007 at 11:55am | IP Logged Quote Eyan

an orchard produces lemons.only lemons with diameter,x greater than k cm r graded n marketed.

Grade  Diameter,x cm

A           ;     X 7

B           ;    7X5

C           ;    5XK

Diameter of lemons has a normal distribution, of5.8cm, of1.5cm

a)a lemon id pick at random, calculate the probability that it is of gradeA

b)in a basket of500 lemons,estimate the number of gradeB lemons

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