Mathematics for IGCSE & O level - Statistical Diagrams (Section 1 - No. 19)
Which of the following is NOT a step in creating a cumulative frequency diagram?
Creating a frequency table
Calculating the cumulative frequencies
Plotting the cumulative frequencies against the upper boundaries of the class intervals
Drawing a line of best fit through the midpoints of the bars.
Giải thích
Drawing a line of best fit is not used for cumulative frequency diagrams.