Question

For a particular year following is the distribution of ages (in years) of primary school teachers in

a district:

Age (in

years)

15-

20

20-

25

25-

30

30-

35

35-

40

40-

45

45-

50

No . of

teachers

10 30 50 50 30 6 4

(i) Write the lower limit of the first class interval.

(ii) Determine the class limits of fourth class interval.

(iii) Find the class mark of class 45 – 50.

(iv) Determine the class​

Answer 1

Answer:

first number question is for determine the class limit of fourth class interval is 6 find the class mark of class 45 - 55 determine the class will be 10 I hope