Probability Notes for Calc I

    This page was written when I included a sheet on the normal distribution in ReimannSums.gsp. These are listed below.

    All other pages and images and links were created in earlier works.

• There are many different probability distributions each describing a different situation.
• The area under the curve, the sum of the probabilities, is equal to 1.
• This is because the result of every situation must be included.
• The probability of an event that does not happen is 0.
• The results of flipping a coin n times is described by a binomial distribution.
• The results in many situations -- length at birth, test scores, a large number of weights or ages or heights -- are "normal," or described by a normal distribution. The normal is often used to compute a binomial probability.

    Probability and cummulative probability tables have been used for many years, but, now spread sheets, computers, and calculator are used.