Question

please answer this question​

Answer 1

Answer:

Answer

Class-Interval Frequency Cf

0−15 5 5

15−30 20 25

30−45 40 65

45−60 50 115

60−75 25 140

Where cf= cumulative frequency

Here:

N=140

N/2=70

cf>70 is 140

Median class =45−60

So, I=45, h=15, f=50 and

cf=cf of preceding class i.e. 65

Substitute all the value in the above formula, we get

Median =45+{15×(70−65)/50

=45+1.5

=45.5

Therefore , median age of diabetic patients is 46.5 years.

Answer 2

Answer:

Hii

Hii

Under the Permanent Settlement the revenue was fixed or decided as per the land holdings of the peasants; In Mahalwari system revenue was to be paid by village known as mahal. ... But in Mahalwari System the revenue was to be revised periodically. In Permanent Settlement the zamindars collected the revenue.