Mathematics for IGCSE & O level - Statistical Diagrams (Section 1 - No. 12)
How do you find the number of data points above a certain value using a cumulative frequency diagram?
Find the cumulative frequency corresponding to that value and subtract it from the total.
Directly read the value on the y-axis.
Subtract the x-axis value from the total.
It cannot be determined using a cumulative frequency diagram.
Giải thích
You subtract the cumulative frequency at the specified value from the total cumulative frequency.