STA 2023 Lecture Notes - Lecture 26: Normal Distribution

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15 Dec 2016
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Area under the standard normal distribution curve: to the left of any z-curve. Look p the z-value in the table and use the area given. Normcdf: to the right of any z-value. Look up the z value and subtact the area from 1. Look up both z values and subtract the corresponding areas. Find the area under the standard normal distribution curve between z=0 and z=1. 77. Find the area under the standard normal distribution curve between z=0 and z=- Find the area under the standard normal distribution curve to the right of z=2. 01. Find the area under the standard normal distribution curve to the left of z=-0. 75. Find the z value to the right of the mean so that: 54. 78% of the area under the distribution curve lies to the left of it. 82. 12% of the are under the distribution curve lies to the right of it. Invnorm(. 1788,0,1) c. 48% of the are under the distribution curve lies between +-z.

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