Read and interpret tables, scaled bar graphs, line graphs, line plots with halves and fourths, and first-quadrant coordinate graphs to retrieve, compare, total, and analyze data. Calculate and interpret the mean, median, mode, and range of small, ungrouped data sets, including whole numbers and familiar decimals or fractions. Represent, compare, and investigate simple probabilities as fractions from 0 to 1, identifying equally likely outcomes and relating experimental results to theoretical probability.