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Frequency distributions

Frequency distributions are commonly seen as a table or histogram.

Example:

Joe flipped a coin until he got "heads." He recorded how many times he needed to flip heads and then repeated the experiment 20 times. Here are his results: 2, 1, 2, 3, 4, 1, 2, 1, 2, 1, 1, 3, 8, 2, 1, 2, 1, 2, 3, 1. Better than a list, a frequency table or histogram would show the data clearly. Note: The pair (2, 7) in the table means that Joe needed to flip the coin 2 times to get "heads" and it happened so 7 times. Note: The bar in the histogram over the 8 means that only one time Joe needed to flip the coin 8 times before he got "heads."