A) 28.61
B) 38.81
C) 29.13
D) 28.31
Correct Answer: B
Solution :
We know that \[{{S}_{k}}=\frac{M-{{M}_{o}}}{\sigma }\], where M = Mean, \[{{M}_{o}}\]= Mode, s = S.D. i.e., \[0.32=\frac{39.6-{{M}_{o}}}{6.5}\] Þ \[{{M}_{o}}=37.52\] and also know that, \[{{M}_{o}}=\]3median ? 2mean \[37.52=\] 3(Median) ? 2(39.6) Median = 38.81 (approx.).
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