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Byju's Answer
Standard VIII
Mathematics
Finding Mode for Grouped Data When Class Intervals Are Given
Compute the m...
Question
Compute the mode of the following data:
Class Interval
Frequency
1-5
3
6-10
8
11-15
13
16-20
18
21-25
28
26-30
20
31-35
13
36-40
8
41-45
6
46-50
4
Mode
23.22
.
If true then enter
1
and if false then enter
0
Open in App
Solution
Class
intervals
Freq(Fi)
1-5
3
6-10
8
11-15
13
16-20
18
21-25
28
26-30
20
31-35
13
36-40
8
41-45
6
46-50
4
Total
121
M
o
d
e
=
l
+
(
f
m
−
f
m
−
1
)
(
f
m
−
f
m
−
1
)
+
(
f
m
−
f
m
+
1
)
×
w
l
i
s
t
h
e
l
o
w
e
r
c
l
a
s
s
b
o
u
n
d
a
r
y
o
f
t
h
e
m
o
d
a
l
c
l
a
s
s
i
n
t
e
r
v
a
l
;
f
m
−
1
i
s
t
h
e
f
r
e
q
u
e
n
c
y
o
f
t
h
e
g
r
o
u
p
b
e
f
o
r
e
t
h
e
m
o
d
a
l
c
l
a
s
s
i
n
t
e
r
v
a
l
.
f
m
i
s
t
h
e
f
r
e
q
u
e
n
c
y
o
f
t
h
e
m
o
d
a
l
c
l
a
s
s
i
n
t
e
r
v
a
l
;
f
m
+
1
i
s
t
h
e
f
r
e
q
u
e
n
c
y
o
f
t
h
e
g
r
o
u
p
a
f
t
e
r
t
h
e
m
o
d
a
l
c
l
a
s
s
i
n
t
e
r
v
a
l
.
w
i
s
t
h
e
w
i
d
t
h
o
f
t
h
e
c
l
a
s
s
i
n
t
e
r
v
a
l
.
H
e
r
e
m
o
d
a
l
r
a
n
g
e
i
s
21
−
25.
l
=
21
,
f
m
=
28
,
f
m
−
1
=
18
,
f
m
+
1
=
20
,
w
=
4
M
o
d
e
=
21
+
28
−
18
(
28
−
18
)
+
(
28
−
20
)
×
4
=
21
+
10
×
4
10
+
8
=
21
+
40
18
=
21
+
2.22
=
23.22
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0
Similar questions
Q.
Find the median from the following data:
Class groups
Frequency
110-120
6
120-130
25
130-140
48
140-150
72
150-160
116
160-170
60
170-180
38
180-190
22
190-200
3
mean is 153.8
If true then enter
1
and if false then enter
0
Q.
Given median
=
99.6
and mean
=
101.2
, then the mode is 96.4
If true then enter
1
and if false then enter
0
Q.
Calculate the mode for the following frequency distribution.
Class
Frequency
0-10
5
10-20
8
20-30
7
30-40
12
40-50
28
50-60
20
60-70
10
70-80
10
mode is 4.67
If true then enter
1
and if false then enter
0
Q.
Compute the mean for the following data:
Marks
No. of students
Less than 10
0
Less than 30
10
Less than 50
25
Less than 70
43
Less than 90
65
Less than 110
87
Less than 130
96
Less than 150
100
mean is 74.80
If true then enter
1
and if false then enter
0
Q.
If
n
2
+
3
n
−
4
=
0
, then
n
=
1
,
−
4
If true then enter
1
and if false then enter
0
.
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