2.3 Computing for Normal Probability Using the Z-Table


ERRATUM: standard deviation = 0.29 This lesson shows how to answer probability problems involving the Normal Distribution. Whenever the µ and ∂ are given, you can use the z-score formula to convert your value to Standard Normal Distribution and find the probability by looking for the area under the Normal curve using the Z-table.

  • 01:18 1. P( x less than or equal to 2.98 )
  • 06:04 2. P( x greater than or equal to 3.01)
  • 11:06 3. P ( x is between 2.90 and 3.07 )

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AP Statistics