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, 06:00 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, 09:56 AMConstatine11
- Jan 13th 2009, 11:11 AM1234567

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, 11:56 AMmr fantastic
- Jan 13th 2009, 11:58 AM1234567
- Jan 13th 2009, 11:59 AMmr fantastic
- Jan 13th 2009, 12:01 PM1234567