13.2g
15.0g
16.8g
17.5g
Correct answer is C
Mode = a + (b−a)(Fm−Fb)2Fm−Fa−Fb
= L1+Δ1xcΔ1+Δ2
= 10+(20−10)(27−10)2(27)−10−19
= 10 + 17025
= 10 + 6.8
= 16.8
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