Calculating Binomial Probabilities with Technology

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After viewing this packet you should be able to calculate the probability for any number of successes in n trials of a binomial experiment, including a number equal to, less than, or greater than a given number of successes using either Statdisk or Excel.

The example shown illustrates how to find the probabiltiy of exactly 7 successes in 12 trials of a binomial random variable with probabiltiy of success on an individual trial of 0.5 and was inspired by the fact that I am from a family of 12 consisting of 7 girls and 5 boys. I wondered what the probability of 7 female births in 12 total births would be.

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