Which graph is used to represent a frequency distribution with vertical bars?

Which graph is used to represent a frequency distribution with vertical bars?

• A. Dot plot
• B. Histogram
• C. Box plot
• D. Stem-and-leaf plot

Answer: (B)

A histogram is the graph used to display a frequency distribution with vertical bars. In a histogram, data are grouped into equal-sized intervals (bins) along the horizontal axis, and the height of each bar shows how many observations fall into that interval (the frequency) or what proportion does (the relative frequency). The bars typically touch, highlighting that the data are continuous. This differs from a dot plot, which places a dot for each individual value; a box plot, which summarizes data with a five-number summary and whiskers; and a stem-and-leaf plot, which preserves actual data values in a digits-based format rather than bars. So, for showing how often data occur in ranges with vertical bars, the histogram is the best choice.

A histogram is the graph used to display a frequency distribution with vertical bars. In a histogram, data are grouped into equal-sized intervals (bins) along the horizontal axis, and the height of each bar shows how many observations fall into that interval (the frequency) or what proportion does (the relative frequency). The bars typically touch, highlighting that the data are continuous. This differs from a dot plot, which places a dot for each individual value; a box plot, which summarizes data with a five-number summary and whiskers; and a stem-and-leaf plot, which preserves actual data values in a digits-based format rather than bars. So, for showing how often data occur in ranges with vertical bars, the histogram is the best choice.