EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Data Handling
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
Given class interval
41
-
44
in exclusive form, its
upper limit is
(i)
42
(ii)
45
(iii)
43
(iv)
44
(v)
46
Question
2
2.
The total export earnings of ₹2880 crores of a country during five years is shown below. Find the earnings (in crores) in 2007-08.
(i)
411
(ii)
405
(iii)
408
(iv)
406
(v)
410
Question
3
3.
The true lower limit and true upper limit of the class with frequency x is
Class-Interval
Frequency
14 - 21
14
21 - 28
x
28 - 35
13
35 - 42
17
42 - 49
13
(i)
20.5
-
28
(ii)
21
-
28
(iii)
21
-
28.5
(iv)
21.5
-
27.5
(v)
20.5
-
28.5
Question
4
4.
The following table gives the data regarding the favourite sport of 351 students of a school. Find the pie chart sector angle for "wrestling"
Sport
kabaddi
wrestling
shotput
carroms
long jump
swimming
chess
No. of students
90
27
45
72
36
18
63
(i)
27.69°
(ii)
25.69°
(iii)
28.69°
(iv)
26.69°
(v)
29.69°
Question
5
5.
Which of the following are true?
a)
The probability of an imposible event can be > 1
b)
For an event E, we have 0
≤
P(E)
≤
1
c)
The probability of a sure event is 1
d)
The probability of an unsure event is 0
e)
The probability of an impossible event is 1
(i)
{d,c}
(ii)
{a,b}
(iii)
{e,a,b}
(iv)
{d,c,b}
(v)
{b,c}
Question
6
6.
1830 students of a certain locality use different modes of travel to school as shown below. Find the mode of travel that has 340 students.
(i)
Scooter
(ii)
RTC Bus
(iii)
By Foot
(iv)
Moped
(v)
Auto
Question
7
7.
The class mark of the class with frequency x is
Class-Interval
Frequency
9 - 19
26
19 - 29
x
29 - 39
23
39 - 49
15
49 - 59
19
(i)
24
(ii)
21
(iii)
23
(iv)
25
(v)
26
Question
8
8.
The statistical diagram that shows the relative sizes of various parts in the total data is
(i)
sectors
(ii)
pie-diagram
(iii)
bar diagram
(iv)
pictograph
Question
9
9.
Two unbiased dice are thrown simultaneously. Find the probability of getting at least 2 as the sum of the two numbers on the dice.
(i)
1
(ii)
3
4
(iii)
1
2
(iv)
0
(v)
1
4
Question
10
10.
Two unbiased coins are tossed simultaneously. Find the probability of getting no head.
(i)
3
4
(ii)
0
(iii)
1
4
(iv)
2
5
(v)
1
2
Question
11
11.
A survey of 60 men showed that only 40 of them know Sanskrit. Out of these men, if one is selected at random, what is the probability that the selected man knows Sanskrit?
(i)
1
(ii)
1
3
(iii)
2
3
(iv)
3
4
Question
12
12.
Weights of 203 students (in kg) are given below.
Identify the class interval table for the given histogram.
(i)
Weight (in kg)
59 - 67
68 - 76
77 - 85
86 - 94
95 - 103
104 - 112
113 - 121
122 - 130
No. of students
49
24
29
18
24
12
34
13
(ii)
Weight (in kg)
59 - 67
68 - 76
77 - 85
86 - 94
95 - 103
104 - 112
113 - 121
122 - 130
No. of students
49
13
29
18
26
12
34
24
(iii)
Weight (in kg)
59 - 67
68 - 76
77 - 85
86 - 94
95 - 103
104 - 112
113 - 121
122 - 130
No. of students
49
13
31
18
24
12
34
24
(iv)
Weight (in kg)
59 - 67
68 - 76
77 - 85
86 - 94
95 - 103
104 - 112
113 - 121
122 - 130
No. of students
49
13
29
18
24
12
34
24
(v)
Weight (in kg)
59 - 67
68 - 76
77 - 85
86 - 94
95 - 103
104 - 112
113 - 121
122 - 130
No. of students
49
13
18
29
24
12
34
24
Question
13
13.
Scores of 131 students are given below.
Identify the class interval table for the given histogram.
(i)
Score
70 - 75
75 - 80
80 - 85
85 - 90
90 - 95
No. of students
21
30
44
18
22
(ii)
Score
70 - 75
75 - 80
80 - 85
85 - 90
90 - 95
No. of students
21
22
40
18
30
(iii)
Score
70 - 75
75 - 80
80 - 85
85 - 90
90 - 95
No. of students
21
40
30
18
22
(iv)
Score
70 - 75
75 - 80
80 - 85
85 - 90
90 - 95
No. of students
21
27
40
18
22
(v)
Score
70 - 75
75 - 80
80 - 85
85 - 90
90 - 95
No. of students
21
30
40
18
22
Question
14
14.
The marks obtained by Raju in his annual exam are shown below. Find the subject that has 57 score.
(i)
Science
(ii)
Spanish
(iii)
Telugu
(iv)
Urdu
(v)
Biology
Question
15
15.
An unbiased die is thrown once. Find the probability of getting an even number?
(i)
1
2
(ii)
2
3
(iii)
4
5
(iv)
3
4
(v)
5
6
Question
16
16.
A bag contains 6 pink marbles, 15 gray marbles, 42 orange marbles and 45 blue marbles. One marble is drawn at random from the bag. Find the probability that the marble drawn is gray or blue.
(i)
4
9
(ii)
5
9
(iii)
3
5
(iv)
2
3
Question
17
17.
The following pie chart shows the monthly budget of a family. Identify the table for the given pie diagram.
(i)
Item
Education
Clothing
Misc.
Net bill
Dish bill
Electricity
Insurance
Food
Expenses (in Rs)
2880
3060
3240
3600
3780
3960
4320
4500
(ii)
Item
Education
Clothing
Misc.
Net bill
Dish bill
Electricity
Insurance
Food
Expenses (in Rs)
3060
3600
2880
4500
3240
3960
4320
3780
(iii)
Item
Education
Clothing
Misc.
Net bill
Dish bill
Electricity
Insurance
Food
Expenses (in Rs)
2880
4500
3060
3600
3240
3960
3780
4320
(iv)
Item
Education
Clothing
Misc.
Net bill
Dish bill
Electricity
Insurance
Food
Expenses (in Rs)
3060
3780
3960
4320
4500
3240
3600
2880
(v)
Item
Education
Clothing
Misc.
Net bill
Dish bill
Electricity
Insurance
Food
Expenses (in Rs)
3780
3060
3240
4500
4320
2880
3600
3960
Question
18
18.
The number of sectors present in the pie chart
(i)
6
(ii)
5
(iii)
9
(iv)
4
(v)
7
Question
19
19.
Read the column-graph given below. Find the year that has maximum food grains production.
(i)
2007
(ii)
2008
(iii)
2009
(iv)
2011
(v)
2010
Question
20
20.
There are 940 creatures in a zoo. Find the type of creature that has maximum presense in the zoo.
(i)
Water animals
(ii)
Land animals
(iii)
Beast animals
(iv)
Birds
(v)
Reptiles
Question
21
21.
In a study of heart patients, the following observations are obtained. Identify the class interval table for the given histogram.
(i)
Age (in years)
42 - 46
46 - 50
50 - 54
54 - 58
58 - 62
62 - 66
No. of Patients
16
38
37
32
26
34
(ii)
Age (in years)
42 - 46
46 - 50
50 - 54
54 - 58
58 - 62
62 - 66
No. of Patients
16
38
42
32
26
34
(iii)
Age (in years)
42 - 46
46 - 50
50 - 54
54 - 58
58 - 62
62 - 66
No. of Patients
16
38
37
30
26
34
(iv)
Age (in years)
42 - 46
46 - 50
50 - 54
54 - 58
58 - 62
62 - 66
No. of Patients
16
37
38
32
26
34
(v)
Age (in years)
42 - 46
46 - 50
50 - 54
54 - 58
58 - 62
62 - 66
No. of Patients
16
34
37
32
26
38
Question
22
22.
Two coins are tossed simultaneously 100 times and it was observed that both heads appeared 75 times. If two coins are tossed simultaneously at random, what is the probability of getting both heads?
(i)
1
4
(ii)
3
4
(iii)
4
5
(iv)
1
2
(v)
1
Question
23
23.
Heights of 239 plants (in cm) are given below.
Identify the class interval table for the given histogram.
(i)
Height (in cm)
63 - 69
69 - 75
75 - 81
81 - 87
87 - 93
93 - 99
99 - 105
105 - 111
No. of plants
10
34
49
37
5
42
22
40
(ii)
Height (in cm)
63 - 69
69 - 75
75 - 81
81 - 87
87 - 93
93 - 99
99 - 105
105 - 111
No. of plants
10
40
49
37
5
42
22
34
(iii)
Height (in cm)
63 - 69
69 - 75
75 - 81
81 - 87
87 - 93
93 - 99
99 - 105
105 - 111
No. of plants
10
34
49
37
3
42
22
40
(iv)
Height (in cm)
63 - 69
69 - 75
75 - 81
81 - 87
87 - 93
93 - 99
99 - 105
105 - 111
No. of plants
10
34
54
37
5
42
22
40
(v)
Height (in cm)
63 - 69
69 - 75
75 - 81
81 - 87
87 - 93
93 - 99
99 - 105
105 - 111
No. of plants
10
34
37
49
5
42
22
40
Question
24
24.
The heights of boys and girls of tenth class of a school are given below. Identify the table for the given bar diagram.
(i)
Height (cm)
135
140
145
150
155
160
Boys
16
25
31
28
19
21
Girls
21
17
33
31
28
39
(ii)
Height (cm)
135
140
145
150
155
160
Boys
16
33
31
28
19
21
Girls
21
9
33
31
28
39
(iii)
Height (cm)
135
140
145
150
155
160
Boys
16
33
31
28
19
21
Girls
21
9
33
31
35
39
(iv)
Height (cm)
135
140
145
150
155
160
Boys
16
33
31
36
19
21
Girls
21
9
33
31
28
39
(v)
Height (cm)
135
140
145
150
155
160
Boys
21
9
40
31
28
39
Girls
16
33
39
28
19
21
Question
25
25.
The upper limit of the class with frequency x is
Class-Interval
Frequency
14 - 20
30
20 - 26
x
26 - 32
24
32 - 38
6
38 - 44
15
(i)
27
(ii)
29
(iii)
26
(iv)
24
(v)
25
Assignment Key
1) (iv)
2) (iii)
3) (ii)
4) (i)
5) (v)
6) (v)
7) (i)
8) (ii)
9) (i)
10) (iii)
11) (iii)
12) (iv)
13) (v)
14) (v)
15) (i)
16) (ii)
17) (i)
18) (i)
19) (ii)
20) (v)
21) (i)
22) (ii)
23) (i)
24) (ii)
25) (iii)
