find mean , median , mode and less than ogive for
0-10 22
10-20 10
20-30 8
30-40 15
40-50 5
50-60 6
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Mean = sum of all observation ÷ no. of observation
= (22+10+8+15+5+6) ÷ 6
= 66 ÷ 6
= 11
Mean = 11
In ascending order
5,6,8,10,15,22
there are two mid values = 8 and 10.
therefore Median = (8+10) ÷ 2
therefore,
median= 9
No number is repeated
so,
Mode= undefined
= (22+10+8+15+5+6) ÷ 6
= 66 ÷ 6
= 11
Mean = 11
In ascending order
5,6,8,10,15,22
there are two mid values = 8 and 10.
therefore Median = (8+10) ÷ 2
therefore,
median= 9
No number is repeated
so,
Mode= undefined
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