Question

Observe the following data.
Class 0-10 10-20 20-30 30-40 40-50 50-60
Interval
Frequency 17
8
12
19
5
14
stalics
What is the class size of the data ?
(a) 5 (b) 8 (C) 10 (d) 15
What is the lower limit of third class?
(a) 30 (b) 20 (c) 12 (d) 25
What is the sum of upper limit of last class and lower limit of second class.
(a) 60 (b) 80 (C) 70 (d) none of these
(iv) What is class mark of second class?
(a) 30 (b) 10 (C) 15 (d) none of these
(ii)​

Answer 1

Answer:

a) 10

b) 20

c) 70

may it help you

Answer 2

Answer:

C)10

B)20

C)70

d) none of these