EduSahara™ Assignment
Name : Quartiles
Chapter : Median, Quartiles and Mode
Grade : ICSE Grade X
License : Non Commercial Use
Question
1
1.
In a class test, the marks obtained by
11
students are
15
48
38
44
47
24
12
25
40
40
14
Find the lower quartile.
(i)
29
(ii)
44
(iii)
15
(iv)
36
(v)
14
1
2
Question
2
2.
In a class test, the marks obtained by
11
students are
26
41
11
26
26
46
37
38
16
46
13
Find the upper quartile.
(i)
12
1
2
(ii)
16
(iii)
29
7
11
(iv)
25
(v)
41
Question
3
3.
In a class test, the marks obtained by
9
students are
15
37
28
47
18
31
41
21
41
Find the inter quartile range.
(i)
19
1
2
(ii)
31
(iii)
10
3
4
(iv)
41
(v)
21
1
2
Question
4
4.
In a class test, the marks obtained by
8
students are
46
38
42
36
17
43
31
17
Find the semi-inter quartile range.
(i)
33
3
4
(ii)
25
(iii)
29
(iv)
12
1
2
(v)
17
Question
5
5.
Heights of 33 students are given below. Find the first quartile.
Height (in cm)
127
131
138
156
157
160
166
173
No. of students
2
7
4
5
3
4
3
5
(i)
130
(ii)
131
(iii)
132
(iv)
129
(v)
133
Question
6
6.
Heights of 35 students are given below. Find the third quartile.
Height (in cm)
136
137
139
142
147
152
154
163
169
174
No. of students
1
2
4
6
2
4
2
4
5
5
(i)
171
(ii)
168
(iii)
169
(iv)
167
(v)
170
Question
7
7.
Heights of 49 students are given below. Find the interquartile.
Height (in cm)
135
144
148
156
161
168
171
172
173
No. of students
5
5
3
6
5
8
4
10
3
(i)
25
(ii)
22
(iii)
23
(iv)
26
(v)
24
Question
8
8.
In a class test, the marks obtained by
11
students are
16
50
47
31
20
32
23
50
29
40
27
Find the lower quartile.
(i)
47
(ii)
33
2
11
(iii)
24
(iv)
34
(v)
23
Question
9
9.
In a class test, the marks obtained by
10
students are
23
23
39
49
32
23
11
50
48
44
Find the upper quartile.
(i)
11
1
2
(ii)
46
(iii)
23
(iv)
39
(v)
34
1
5
Question
10
10.
In a class test, the marks obtained by
9
students are
50
47
20
30
22
21
50
49
17
Find the inter quartile range.
(i)
49
1
2
(ii)
33
(iii)
14
1
2
(iv)
20
1
2
(v)
29
Question
11
11.
In a class test, the marks obtained by
8
students are
42
19
25
22
21
34
39
43
Find the semi-inter quartile range.
(i)
24
(ii)
39
(iii)
21
(iv)
9
(v)
30
5
8
Question
12
12.
Heights of 35 students are given below. Find the first quartile.
Height (in cm)
130
131
144
146
153
161
165
166
No. of students
4
1
6
4
4
7
6
3
(i)
145
(ii)
144
(iii)
146
(iv)
142
(v)
143
Question
13
13.
Heights of 41 students are given below. Find the third quartile.
Height (in cm)
128
145
147
149
151
154
156
168
169
170
No. of students
5
2
2
3
5
6
3
7
4
4
(i)
169
(ii)
170
(iii)
166
(iv)
167
(v)
168
Question
14
14.
Heights of 25 students are given below. Find the interquartile.
Height (in cm)
139
141
143
145
153
154
159
167
170
No. of students
4
3
2
5
1
2
3
4
1
(i)
16
(ii)
17
(iii)
19
(iv)
18
(v)
20
Assignment Key
1) (iii)
2) (v)
3) (v)
4) (iv)
5) (ii)
6) (iii)
7) (v)
8) (v)
9) (ii)
10) (v)
11) (iv)
12) (ii)
13) (v)
14) (iv)
