Is this correct? Please Help Business Statistics?

  • Thread starter Thread starter bellachanel
  • Start date Start date
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bellachanel

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Did i answer these correctly?
Q. Given that z is a standard normal random variable, compute the following probabilities:

a) P(z>1.8)
z>1.8= .4641
.5000 - .4641=.0359
Ans = .0359
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b) p(z=2)
z=2 is .4772
.5000 - .4772= .0228
Ans = .0228
-----------------------------

c) p(z ≤ 1.5)
z ≤ 1.5= .4332
.5000 - .4332= .0668
Ans= .0668
 
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