Find the area under the standard normal curve to the left of z=1.25.

Question

Mathematics

Mario

18 May, 10:14

Find the area under the standard normal curve to the left of z=1.25.

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Answers (1)

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Amaris Mcpherson · Answer 1

For quite some time now, calculators have had statistical functions built in. Here we need to use the stat. function normalcdf, which has only two inputs when we're working with z scores instead of raw scores.

Here,

normalcdf (-100,1.25) = 0.894

This same result could be obtained using a table of z-scores.