Question

please answer this question​

Answer 1

Answer:

Given : the age distribution of patients of malaria in  a village during a particular month:

Age (in years) 5-14 15-24 25-34 35-44  45-54 55-64  

Number of cases  6       11     21        23          14    5  

To Find :  the average age of the patients.​  

Solution:  

Age (in years)  Mean Age   d=(Mean - 29.5)/10   f              d.f    

5-14                   9.5                   -2                           6           -12  

15-24                19.5                   -1                           11           -11  

25-34               29.5                  0                           21            0  

35-44               39.5                   1                           23           23  

45-54               49.5                   2                          14            28  

55-64               69.5                   3                          5             15  

                                                                            80            43

Mean = 29.5  +  43 * 10 /80

= 29.5 + 5.375  

= 34.875  

average age of the patients = 34.875

Step-by-step explanation:

Plz mark as Brainliest...

Answer 2

Answer:

There is no difference between land settlement and revenue settlement. The Land Revenue System, also known as the Land Settlement System was introduced by Lord Cornwallis in Bengal in 1793. Under this system, the Zamindars were the owners of land (or, the landlords).