Please solve 29th sum.
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CI f x fx
40-44 4 2 8
44-48 6 4 24
48-52 10fo 6 60
52-56 14f1 8 112
56-60 10f2 10 100
60-64 8 12 96
64-68 6 14 84
68-72 2 16 32
Total 60 622
now,
mean=622/60
= 10.3
mode = 52+ [14-10/28-10-10]×4
= 52+ 4/8×4
=52+2
=54
40-44 4 2 8
44-48 6 4 24
48-52 10fo 6 60
52-56 14f1 8 112
56-60 10f2 10 100
60-64 8 12 96
64-68 6 14 84
68-72 2 16 32
Total 60 622
now,
mean=622/60
= 10.3
mode = 52+ [14-10/28-10-10]×4
= 52+ 4/8×4
=52+2
=54
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