R Trix for high school students

R Teaching Resources for Interactive eXploration of data & chance

List of TOPICS

Counting and Probability

Permutations and Combinations

Probability Distributions

Statistical Analysis

example for Binomial Distribution

The probability that a group does not show up at a restaurant reservation is estimated to be 15%. Generate and graph the probability distribution for the discrete random variable that represents the number of no show groups when there are 10 unrelated reservations. Use the probability distribution to determine the probability of at least 3 no shows.

Suppose Y is a binomial random variable where the probability of success p is 0.40 and n is the number of trials. Plot the probability histogram of the binomial distribution with n = 10. On the same plot, add the curve of a normal distribution that has = np and = np(1-p). Repeat with n = 50, 500, 1000.

example3

A farmer estimates that 40% of the eggs produced by his hen are rotten. Generate and graph the probability distribution for the random variable that represents the number of rotten eggs in a batch of 12.

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