Question

Class X students appeared for a test and Marks obtained are formulated in a table as follows
(out of 60)
Marks
010
10 - 20
20-30
30-40
40 - 50
50 - 60
Number of
Students
4
6
7
12
5
6


(b) What is the modal class of given table?
(a) 20 30
(b) 30 - 40
(c) 40 - 50
(d) 10-20
c) How many students secured less than 40 Marks
(a) 30
(b) 40
(c) 29
(d)34
(iii) What is upper limit of modal class?
(a) 30
(b) 40
(c) 50
(d)20
(iv) Cumulative frequency table is constructed to determine:
(a) Mean
(b) Median
(c) Mode
(d) all of these
(v) Step deviation method is used to find the
(a) Mean
(b) Median
(c) None of these
(d) Mode​

Answer 1

Answer:

refer the image

all ans are written