ผลต่างระหว่างรุ่นของ "Probstat/week8 practice 2"

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(หน้าที่ถูกสร้างด้วย ': ''This is part of probstat''. To compute the cdf of standard normal random variable, you can use a table from [http://en.wikiped...')
 
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To compute the cdf of standard normal random variable, you can use a table from [http://en.wikipedia.org/wiki/Standard_normal_table wikipedia].
 
To compute the cdf of standard normal random variable, you can use a table from [http://en.wikipedia.org/wiki/Standard_normal_table wikipedia].
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== Basic practice ==
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Let '''Z''' be a standard normal random variable (whose mean is 0 and variance is 1).
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1. Find '''P{ Z >= 0 }'''.
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2. Find '''P{ Z >= 0.5 }'''.
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3. Find '''P{ Z >= 1 }'''.
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4. Approximate the minimum value '''a''' such that '''P{ Z >= a } <= 0.1'''.

รุ่นแก้ไขเมื่อ 02:43, 9 ตุลาคม 2557

This is part of probstat.

To compute the cdf of standard normal random variable, you can use a table from wikipedia.

Basic practice

Let Z be a standard normal random variable (whose mean is 0 and variance is 1).

1. Find P{ Z >= 0 }.

2. Find P{ Z >= 0.5 }.

3. Find P{ Z >= 1 }.

4. Approximate the minimum value a such that P{ Z >= a } <= 0.1.