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Using the data of question 18 (modal class 20-30, l = 20, f1 = 15, f0 = 9, f2 = 8, h = 10), compute the mode.

Class 10Mode of Grouped DataStatistics and Probability

A24.6
B22.5
C26.0
D28.4

Step-by-Step Solution

Mode

= 20 + \frac{15 - 9}{2 \times 15 - 9 - 8} * 10 = 20 + \frac{6}{30 - 17} * 10 = 20 + \frac{6}{13} * 10 = 20 + 4.6 = 24.6

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Answer: A) 24.6

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