EduSahara™ Assignment
Name : Chance and Probability
Chapter : Data Handling
Grade : CBSE Grade VIII
License : Non Commercial Use
Question
1
1.
A single unbiased coin is tossed. Find the probability of getting a head.
(i)
1
2
(ii)
3
4
(iii)
5
6
(iv)
4
5
(v)
2
3
Question
2
2.
Two unbiased coins are tossed simultaneously. Find the probability of getting exactly one head.
(i)
3
4
(ii)
2
3
(iii)
4
5
(iv)
1
2
(v)
5
6
Question
3
3.
Two unbiased coins are tossed simultaneously. Find the probability of getting at least one head.
(i)
1
(ii)
4
5
(iii)
1
4
(iv)
1
2
(v)
3
4
Question
4
4.
Two unbiased coins are tossed simultaneously. Find the probability of getting at least two heads.
(i)
1
4
(ii)
2
5
(iii)
0
(iv)
3
4
(v)
1
2
Question
5
5.
Two unbiased coins are tossed simultaneously. Find the probability of getting at most one head.
(i)
1
2
(ii)
1
(iii)
3
4
(iv)
1
4
(v)
4
5
Question
6
6.
Two unbiased coins are tossed simultaneously. Find the probability of getting no head.
(i)
3
4
(ii)
2
5
(iii)
1
4
(iv)
0
(v)
1
2
Question
7
7.
Three unbiased coins are tossed simultaneously. Find the probability of getting exactly one head.
(i)
1
2
(ii)
1
4
(iii)
5
8
(iv)
4
9
(v)
3
8
Question
8
8.
Three unbiased coins are tossed simultaneously. Find the probability of getting at least one head.
(i)
1
(ii)
3
4
(iii)
1
8
(iv)
7
8
(v)
8
9
Question
9
9.
Three unbiased coins are tossed simultaneously. Find the probability of getting at least two heads.
(i)
2
3
(ii)
4
5
(iii)
5
6
(iv)
3
4
(v)
1
2
Question
10
10.
Three unbiased coins are tossed simultaneously. Find the probability of getting at most one head.
(i)
3
4
(ii)
1
2
(iii)
2
3
(iv)
5
6
(v)
4
5
Question
11
11.
Three unbiased coins are tossed simultaneously. Find the probability of getting no head.
(i)
1
4
(ii)
7
8
(iii)
0
(iv)
1
8
(v)
2
9
Question
12
12.
Two unbiased dice are thrown simultaneously. Find the probability of getting a doublet.
(i)
1
3
(ii)
5
6
(iii)
0
(iv)
1
6
(v)
2
7
Question
13
13.
Two unbiased dice are thrown simultaneously. Find the probability of getting 2 as the sum of the two numbers on the dice.
(i)
1
18
(ii)
2
37
(iii)
0
(iv)
1
36
(v)
35
36
Question
14
14.
A die is thrown twice. What is the probability that 3 will come up atleast once?
(i)
11
36
(ii)
1
3
(iii)
5
18
(iv)
25
36
(v)
12
37
Question
15
15.
A die is thrown twice. What is the probability that 3 will not come up either time?
(i)
2
3
(ii)
26
37
(iii)
11
36
(iv)
25
36
(v)
13
18
Question
16
16.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is a jack?
(i)
3
13
(ii)
1
13
(iii)
1
4
(iv)
1
26
(v)
1
52
Question
17
17.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is a red jack?
(i)
1
26
(ii)
1
13
(iii)
1
4
(iv)
1
52
(v)
3
13
Question
18
18.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is a jack of diamonds?
(i)
3
13
(ii)
1
4
(iii)
1
26
(iv)
1
13
(v)
1
52
Question
19
19.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is '8' of hearts?
(i)
1
52
(ii)
1
4
(iii)
1
26
(iv)
1
13
(v)
3
13
Question
20
20.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is '8' of black suit ?
(i)
1
13
(ii)
1
4
(iii)
1
26
(iv)
1
52
(v)
3
13
Question
21
21.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is a clubs?
(i)
3
13
(ii)
1
13
(iii)
1
26
(iv)
1
52
(v)
1
4
Question
22
22.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is a face card ?
(i)
1
52
(ii)
3
13
(iii)
1
26
(iv)
1
13
(v)
1
4
Question
23
23.
One card is drawn at random from a well shuffled deck of 52 cards. What is the probability that the card drawn is either a red card or a queen?
(i)
3
13
(ii)
7
13
(iii)
1
13
(iv)
1
26
(v)
1
52
Question
24
24.
An unbiased die is thrown once. Find the probability of getting a prime number?
(i)
2
3
(ii)
1
2
(iii)
3
4
(iv)
5
6
(v)
4
5
Question
25
25.
An unbiased die is thrown once. Find the probability of getting an even number?
(i)
5
6
(ii)
4
5
(iii)
2
3
(iv)
3
4
(v)
1
2
Question
26
26.
An unbiased die is thrown once. Find the probability of getting a 1?
(i)
0
(ii)
2
7
(iii)
1
3
(iv)
1
6
(v)
5
6
Question
27
27.
An unbiased die is thrown once. Find the probability of getting a number greater than 1?
(i)
6
7
(ii)
2
3
(iii)
5
6
(iv)
1
(v)
1
6
Question
28
28.
An unbiased die is thrown once. Find the probability of getting a number less than 6?
(i)
1
6
(ii)
6
7
(iii)
5
6
(iv)
2
3
(v)
1
Question
29
29.
An unbiased die is thrown once. Find the probability of getting a number between 3 and 5?
(i)
0
(ii)
2
7
(iii)
1
3
(iv)
5
6
(v)
1
6
Question
30
30.
A box contains 10 white balls, 20 red balls, 75 gray balls and 45 black balls. One ball is drawn at random from the box. Find the probability that the ball drawn is red.
(i)
2
15
(ii)
3
16
(iii)
1
15
(iv)
13
15
(v)
1
5
Question
31
31.
A box contains 21 gray marbles, 9 orange marbles, 36 black marbles and 39 pink marbles. One marble is drawn at random from the box. Find the probability that the marble drawn is not black.
(i)
23
35
(ii)
12
35
(iii)
22
35
(iv)
24
35
(v)
2
3
Question
32
32.
A box contains 8 pink marbles, 14 gray marbles, 24 orange marbles and 10 white marbles. One marble is drawn at random from the box. Find the probability that the marble drawn is orange or pink.
(i)
4
7
(ii)
5
8
(iii)
5
7
(iv)
3
7
Question
33
33.
A bag contains 5 gray marbles, 40 white marbles, 35 blue marbles and 5 pink marbles. One marble is drawn at random from the bag. Find the probability that the marble drawn is neither white nor pink.
(i)
9
17
(ii)
7
17
(iii)
8
17
(iv)
1
2
Question
34
34.
Which of the following experiments have equally likely outcomes?
a)
A ball is hit. It reaches the boundary or not
b)
A man starts his vehicle. It starts or it does not starts
c)
A man throws a die. The number on the top is either 3 or not 3
d)
A baby is born. It is a boy or girl
e)
A true/false question is attempted. The answer is either right or wrong
(i)
{c,a,d}
(ii)
{b,e,d}
(iii)
{d,e}
(iv)
{b,e}
(v)
{a,d}
Question
35
35.
A box contains 80 discs which are numbered from 1 to 80. If one disc is drawn at random from the box, find the probability that it bears a two-digit number.
(i)
9
80
(ii)
8
9
(iii)
9
10
(iv)
7
8
(v)
71
80
Question
36
36.
A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears a perfect square number.
(i)
1
10
(ii)
2
11
(iii)
0
(iv)
9
10
(v)
1
5
Question
37
37.
81 cards are numbered 1,2,3,....81 and put in a box and mixed thoroughly. A card is drawn at random. What is the probability that the number on the drawn card is an odd number?
(i)
21
41
(ii)
41
81
(iii)
40
81
(iv)
14
27
Question
38
38.
99 cards are numbered 1,2,3,....99 and put in a box and mixed thoroughly. A card is drawn at random. What is the probability that the number on the drawn card is less then 24?
(i)
6
25
(ii)
23
99
(iii)
8
33
(iv)
76
99
(v)
2
9
Assignment Key
1) (i)
2) (iv)
3) (v)
4) (i)
5) (iii)
6) (iii)
7) (v)
8) (iv)
9) (v)
10) (ii)
11) (iv)
12) (iv)
13) (iv)
14) (i)
15) (iv)
16) (ii)
17) (i)
18) (v)
19) (i)
20) (iii)
21) (v)
22) (ii)
23) (ii)
24) (ii)
25) (v)
26) (iv)
27) (iii)
28) (iii)
29) (v)
30) (i)
31) (i)
32) (i)
33) (iii)
34) (iii)
35) (v)
36) (i)
37) (ii)
38) (ii)
