5) When circuit boards used in the manufacture of compact disc players are tested, the long-run percentages of defectives is 5%. Let X-the number of defective boards in a random sample of size n=25, so X-Bin(25, .05). a) Determine P(X < 2) b) Determine P(X > 5) c) Determine P(1

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5) When circuit boards used in the manufacture of compact disc players are tested, the long-run percentages of defectives is 5%.  Let X=the number of defective boards in a random sample of size n=25, so X

~~

Bin(25, .05). 

    1. Determine 

P(X≤2)P(X≤2)

  1.  
    1. Determine 

P(X≥5)P(X≥5)

  1.  
    1. Determine 

P(1≤X≤4)P(1≤X≤4)

  1.  
  1. Calculate the expected value and standard deviation of X. 
5) When circuit boards used in the manufacture of compact disc players are tested, the long-run
percentages of defectives is 5%. Let X=the number of defective boards in a random sample of size
n=25, so X-Bin(25, .05).
a) Determine P(X < 2)
b) Determine P(X > 5)
c) Determine P(1 < X < 4)
d) Calculate the expected value and standard deviation of x.
Transcribed Image Text:5) When circuit boards used in the manufacture of compact disc players are tested, the long-run percentages of defectives is 5%. Let X=the number of defective boards in a random sample of size n=25, so X-Bin(25, .05). a) Determine P(X < 2) b) Determine P(X > 5) c) Determine P(1 < X < 4) d) Calculate the expected value and standard deviation of x.
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