Question

Find mean, median and mode of the following data.Classes 0-10 10-20 20-30 30-40 40-50. frequency 8,26,36,34,16=120​

Answer 1

Answer:

Here, l=60,f=12,cf=24,h=20

Median=l+

f

2

N

−cf

×h

⇒ Median=60+

12

25−24

×20

⇒ Median=60+

12

20

=61.66

⇒ Modalclass=60−80

⇒ l=30,f=12,f

1

=10,f

2

=6,h=20

Mode=l+

2f−f

1

−f

2

f−f

1

×h

⇒ Mode=60+

2×12−10−6

12−10

×20

⇒ Mode=60+5=65

Step-by-step explanation:

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