how do you find a percentage through a z score

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Guest Mar 11, 2015

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Best Answer

The total area under a normal curve is 1.

So you need to know, or work out, the relevant z scores for your question.

if you colour the bit of the curve that makes your question correct you can look up the z table table and work out the percent probability from that.

I haven't explained well, I know this. If you give an exact question it might be easier.

Melody Mar 11, 2015

Melody · Answer 1 · 2015-03-11T11:43:37

The total area under a normal curve is 1.

So you need to know, or work out, the relevant z scores for your question.

if you colour the bit of the curve that makes your question correct you can look up the z table table and work out the percent probability from that.

I haven't explained well, I know this. If you give an exact question it might be easier.

Guest · Answer 2 · 2015-03-11T10:46:19

Use a statistical Standard Distribution Chart.