In a cumulative frequency graph the lower quart... - WAEC Mathematics 2014 Question
In a cumulative frequency graph, the lower quartile is 18 years while the 60th percentile is 48 years. What percentage of the distribution is at most 18 years or greater than 48 years?
A
15%
B
35%
C
65%
D
85%
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Correct Option: C
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