Graphs and Charts

Question 1

Categorical Data

Answer 1

data recorded as categories/groups

Question 2

Dot Plot

Answer 2

a dot plot showing data frequency counts. Dot plots are used for small quantitative data. Dot plots reveal the graph’s mode, skew, and outliers.

Question 3

Quantitative Data

Answer 3

data which is measured and usually expressed numerically

Question 4

Stem-and-Leaf Plot / Stemplot

Answer 4

a figure that divides each data value into a “leaf” (typically the last digit) and a “stem” (the rest). Smaller quantitative data sets employ stemplots. Stemplots show outliers, clusters, and gaps.