Question

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Answer 1

Answer:

modal class = 30-45

lower limit ( L) = 30

f0 = 7

f1 = f

f2 = 3

h= 10

mode= L+ f1 - f0/2f1 - f0 - f2 * h

34.5= 30 + f-7/2f-7-3 * 10

34.5-30= f-7/2f-10 * 10

4.5 = f-7 /2f-10 *10

4.5 * 2f-10= f-7 * 10

9.0f- 45= 10f - 70

-45 + 70=10f-9f

25= f.

Explanation:

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