Posted by Peggy 10 months ago In:

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Peggy
Peggy Asked:

Probabilities

An inspector correctly identifies defective products 90% of the time.  FOr the next 10 products, what is the probability that he makes fewer than 2 incorrect inspections?  Round your answer to three decimal places.

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Peggy
Peggy Answered:

An automotive center keeps track of customer complaints received each week.  The probability distribtuion for complaints can be represented as a table or a graph, both shown below.  The random variable xi represents the number of complaints, and p(xi) is the probability of receiving xi complaints.

 

  xi          0          1          2          3          4           5          6

p(xi)        .10      .15        .18      .29         .20       .10        .10

 

Thank you.

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santha
santha Answered:

1x2x3x4x5x6x7x8x9x .... x90 should have been an answer if I would have understood maths

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PGroot
PGroot Answered:

The probability of zero errors is .9^10 =.3487 and the probability of one error is .9^9 x .1 x 10 ways = .3874, total (to 3 places) .736

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