80 likes | 255 Views
Cumulative Frequency Graphs. Estimating the median and inter-quartile range. 56 72 79 80. x co-ordinates Remember these are the END POINTS of the class intervals. y co-ordinates. 56 72 79 80. 80 70 60 50 40 30 20 10 0. cumulative frequency.
E N D
Cumulative Frequency Graphs Estimating the median and inter-quartile range
56 72 79 80 x co-ordinates Remember these are the END POINTS of the class intervals y co-ordinates
56 72 79 80 80 70 60 50 40 30 20 10 0 cumulative frequency 4 8 12 16 20 24 Heights (cm)
80 70 60 50 40 30 20 10 0 cumulative frequency 4 8 12 16 20 24 Heights (cm) 56 72 79 80
80 70 60 50 40 30 20 10 0 cumulative frequency 4 8 12 16 20 24 Heights (cm)