Histograms, Frequency Polygons, and Ogives

Draw and label the x and y axes.

STEP 1

STEP 2

Choose a suitable scale for the frequencies or cumulative frequencies, and label it on the y axis.

STEP 3

Represent the class boundaries for the histogram or ogive, or the midpoint for the frequency polygon, on the x axis.

STEP 4

Plot the points and then draw the bars or lines.

Procedure

Construct a histogram, frequency polygon and ogive to represent the data shown for the record high temperatures for each of the 8 regions.

102

107

112

117

122

127

132

2

10

28

41

48

49

50

HISTOGRAM

FREQUENCY POLYGON

O G I V E