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The page below is a sample from the LabCE course Descriptive Statistics. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

Learn more about Descriptive Statistics (online CE course)

Histograms are used for continuous or discrete data. When continuous data are charted, you can connect the midpoints of the tops of the bars with a dashed line.

    Figure 4
    Frequency of Serum Glucose Levels in 130 Hospital Employees