Question

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Answer 1

Answer:

please mark as brainliest

Step-by-step explanation:

Here modal class is 60-80, since it has a maximum frequency which is 29.

l= 60 , f1= 29, f0= 21, f2= 17, h= 20

Mode=  l + (f1-f0/2f1-f0-f2) ×h

Mode= 60 +(29-21/2×29-21-17)× 20

Mode= 60 + (8/58-21-17)× 20

Mode= 60+ (8/37-17)×20

Mode= 60 + (8/20)×20

Mode = 60 + 8

Mode = 68

Hence, the mode marks is 68.

Empirical formula between Mean ,Median& Mode

3 Median = Mode +2 Mean

3 Median = 68 + 2(53)

[ Mean = 53 (given)]

3 Median = 68 + 106

3 Median= 174

Median= 174/3

Median = 58

Hence, the Median is 58 .

Hope this will help you....

Answer 2

i hope its clear to you