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Calculating Area Under the Standard Normal Curve

This tool helps find the area under a standard normal curve using a calculator, useful for probability calculations and normal distribution. Input values and follow instructions on how to find specific areas. The tool is handy for statistics assignments and worksheets.

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Calculating Area Under the Standard Normal Curve

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  1. Finding Area…With Calculator

  2. OBJECTIVE Find the area under a standard normal curve using a GDC.

  3. RELEVANCE Find probabilities and values of populations whose data can be represented with a normal distribution.

  4. Go to 2nd vars Press 2:normalcdf Input two numbers: (where you start shading, where you end shading) Example: Find the area between z=0 and z=2.34. Finding area with calculator…… NOTE: The new operating system will be slightly different.

  5. Answer: 0.4599 Find the area between z = 0 and z = -1.75.

  6. Answer: 0.1335 Find the area to the right of z = 1.11.

  7. Answer: 0.0268 Find the area to the left of z = -1.93.

  8. Answer: 0.0160 Find the area between z = 2 and z = 2.47.

  9. Answer: 0.1967 Find the area between z = -0.83 and z = -2.48.

  10. Answer: 0.8682 Find the area between z = -1.37 andz = 1.68.

  11. Answer: 0.9767 Find the area to the left of z = 1.99.

  12. Answer: 0.8770 Find the area to the right of z = -1.16.

  13. Answer: 0.0089 Find the area to the left of z = -3.01 and to the right of z = 2.43.

  14. Assignment……. • Worksheet Use your calculator

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