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few questions i need help with. for statistics.

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http://viewer.zoho.com/docs/sycjg...
few questions i need help with. for statistics.
http://viewer.zoho.com/docs/sycjg
Submitted: 8 years ago.Category: Math Homework
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6/29/2010
Math Tutor or Teacher: Chirag, Master's Degree replied 8 years ago
Chirag
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Customer reply replied 8 years ago
yes
Math Tutor or Teacher: Chirag, Master's Degree replied 8 years ago
Questions 12, 13 and 14 are not visible clearly and if I zoom, the lines fade off. Can you post those questions again as a word file or pdf file ir an ellarged image? I have done the others.
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Customer reply replied 8 years ago

12. In a batch of 2000 calculators, there are, on average, 8 defective ones. If a random sample of 150 is selected, find the probability of 5 defective ones. Note, use the Poisson distribution and give your answer exactly as it appears in the Poisson tables.

 

and the link to the other two

http://viewer.zoho.com/docs/rUKbcj

Math Tutor or Teacher: Chirag, Master's Degree replied 8 years ago

(9) D

 

(10) A

 

(11) B

 

(12) e^-0.6 * (0.6)^5 / 5! = 0.00035

 

(13) C

 

(14) B

 

(15) C

 

Thanks.

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