The cumulative frequency curve shows 70 recorded times, in minutes. Use the graph to estimate the me

Question

The cumulative frequency curve shows 70 recorded times, in minutes. Use the graph to estimate the median. Use the graph to estimate the lower and upper quartiles. Hence, estimate the interquartile range.

Accepted Answer

(a) $28.5$ min; (b) $19.6$ min and $38.5$ min; (c) $18.9$ min.

Sec 3/4 E Math T14-Q03 - Reading a cumulative frequency curve

Sec 3/4 E Math T14-Q03 - Reading a cumulative frequency curve

Solution:

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