alleryStart learning →Classes 0-10, 10-20, 20-30 and 30-40 have frequencies 5, 8, 12 and 5. The median is about:
A25.00
B20.00
C21.67
D15.00
Answer & Solution
Correct answer: C. 21.67
N/2 = 15 falls in class 20-30, so median = 20 + (15 - 13)/12 x 10 = 21.67.
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