Question

Find the missing frequency of the following data if the mode is 48.6 : ClassInterval:10 – 25 25 – 40 40 – 55 55 – 70 70 – 85 Frequency:6 20 44 y 3 please give the answer fast

Answer 1

Answer:

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10th

Maths

Statistics

Mode of Grouped Data

Find the mode of the follow...

STATISTICS

Find the mode of the following distribution.

(i)

Class-interval: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80

Frequency: 5 8 7 12 28 20 10 10

(ii)

Class-interval: 10-15 15-20 20-25 25-30 30-35 35-40

Frequency: 30 45 75 35 25 15

(iii)

Class-interval: 25-30 30-35 35-40 40-45 45-50 50-60

Frequency: 25 34 50 42 38 14

November 22, 2019

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Shrilakshmi Bindal

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ANSWER

We know,

Mode=l+

2f−f

1

−f

2

f−f

1

×h

l= lower limit of the modal class

h= size of the class intervals

f= frequency of the modal class

f

1

= frequency of the class preceding the modal class

f

2

= frequency of the class succeed in the modal class.

(i) Here, the maximum frequency is 28 then the corresponding class 40−52 is modal class.

⇒ l=40,h=50−40=10,f=28,f

1

=12,f

2=20

⇒ Mode=l+ 2f−f 1 −f 2

f−f 1×h

⇒ Mode=40+ 2×28−12−20

28−12×10

⇒ Mode=40+ 24+160

⇒ Mode=40+6.67=46.67

Answer 2

Answer:

hey here is your solution in above pics

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