JAMB - Mathematics (2016 - No. 45)

OGIVE is constructed using
Third quartile range
Semi-quartile range
Cummulative frequency table
Inter-quartile table

Explanation

An ogive is constructed using the cumulative frequencies from a frequency distribution table.

Collect Data: Organize your data into a frequency distribution table.

Calculate Cumulative Frequency: Add frequencies cumulatively for each class interval.

Determine Class Boundaries: Identify the upper boundaries of the class intervals.

Plot Points: Plot cumulative frequencies against the upper class boundaries.

Draw the Ogive: Connect the points with a smooth curve, starting from (0, 0).

Label the Axes: Clearly label the x-axis (upper boundaries) and y-axis (cumulative frequency).

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