The normal distribution on the ti8384 plus the three major functions for the normal curve on the ti8384 plus calculators are located in the distribution menu. These instructions will work for the ti83 and ti84 families of calculators. Ti84plus 84 plus edition graphing calculator, ti84 viewscreen calc, ti84 plus, ti84 plus silver edition. Compute normal distribution tail areas using a ti83 or ti84 graphing calculator. Easy steps plus video of how to use the ti 83 normalcdf function. Use the normalcdf function of the ti calculator to find the area of a shaded region for this example we find the area to the left of 85 the syntax is. Find the area under the normal curve with a ti83 or ti84 calculator duration. Ti84 plus and ti84 plus silver edition guidebook texas. The three ti8384 features dealing with normal distributions and how they are or could be used. We calculate areas on the standard normal curve and use areas to find cutoff values zscores. Generally, normalpdf is not used except in the y editor to draw the normal curve. If you want all the numbers less than a certain value, your lower boundary will be negative infinity. Do not ever use normal pdf highlight normal cdf and hit enter. Ti 8384 for normal pdf calculations tutorial sophia.
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