Question

find the mode of the following data and check by formula.
Hieght in cm. No. Of plants
Above 30. 34
Above 40. 30
Above 50. 27
Above 60. 19
Above 70. 18
Above 80. 2
Chapter statics​

Answer 1

Answer:

Height No. of parents

30−40 4

40−50 3

50−60 8

60−70 11 → Modal class as it has highest frequency

70−80 6

80−90 2

l

1

=60

f

o

=8

f

1

=11

f

2

=6

c=10

Mode =l

1

+(

2f

1

−f

o

−f

2

f

1

−f

o

×c)

=60+

3

30

=63.7.