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If for a data set the modal class is 30-40 with l = 30, f1 = 20, f0 = 12, f2 = 11 and h = 10, the mode equals:

Class 10Mode of Grouped DataStatistics and Probability

A34.7
B32.5
C36.0
D38.2

Step-by-Step Solution

Mode

= 30 + \frac{20 - 12}{2 \times 20 - 12 - 11} * 10 = 30 + \frac{8}{40 - 23} * 10 = 30 + \frac{8}{17} * 10 = 30 + 4.7 = 34.7

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Answer: A) 34.7

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