JEE MAIN - Mathematics (2005 - No. 7)
If in a frequency distribution, the mean and median are 21 and 22 respectively, then
its mode is approximately :
20.5
22.0
24.0
25.5
설명
Given that,
Mean = 21 and median = 22
We know,
Mode + 2 Mean = 3 Median
$$\therefore$$ Mode = 3 $$ \times $$ 22 $$-$$ 2 $$ \times $$ 21
= 66 $$-$$ 42
= 24
Mean = 21 and median = 22
We know,
Mode + 2 Mean = 3 Median
$$\therefore$$ Mode = 3 $$ \times $$ 22 $$-$$ 2 $$ \times $$ 21
= 66 $$-$$ 42
= 24