if X~N(-10,25) Find x such that P(X<x)=1/10

i could not find any Ix on the statistical table with value 0.1 so i am stuck,what intermiediate step should i take?

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- Jan 10th 2009, 07:00 AMmath8553stand norm rand var
if X~N(-10,25) Find x such that P(X<x)=1/10

i could not find any Ix on the statistical table with value 0.1 so i am stuck,what intermiediate step should i take? - Jan 10th 2009, 10:56 AMConstatine11
- Jan 13th 2009, 12:11 PM1234567

Not really sure what the answer is to this question. Can someone please confirm this. I got two different answer but not sure which one is correct.

1) z = -1.282 (from normal table)

x = z(sigma) + mu = -1.282(5) + -10 = -16.41

2)z = 1.282 (from normal table)

x = z(sigma) + mu = 1.282(5) + -10 = -3.59

Please cans some1 tell me which 1 is correct thanks - Jan 13th 2009, 12:56 PMmr fantastic
- Jan 13th 2009, 12:58 PM1234567
- Jan 13th 2009, 12:59 PMmr fantastic
- Jan 13th 2009, 01:01 PM1234567