EduSahara™ Assignment
Name : Coin Problems
Chapter : Probability
Grade : SSC Grade X
License : Non Commercial Use
Question
1
1.
A single unbiased coin is tossed. Find the probability of getting a head.
(i)
5
6
(ii)
2
3
(iii)
1
2
(iv)
3
4
(v)
4
5
Question
2
2.
Two unbiased coins are tossed simultaneously. Find the probability of getting exactly one head.
(i)
2
3
(ii)
5
6
(iii)
4
5
(iv)
1
2
(v)
3
4
Question
3
3.
Two unbiased coins are tossed simultaneously. Find the probability of getting at least one head.
(i)
1
(ii)
1
4
(iii)
3
4
(iv)
1
2
(v)
4
5
Question
4
4.
Two unbiased coins are tossed simultaneously. Find the probability of getting at least two heads.
(i)
3
4
(ii)
2
5
(iii)
1
2
(iv)
1
4
(v)
0
Question
5
5.
Two unbiased coins are tossed simultaneously. Find the probability of getting at most one head.
(i)
1
2
(ii)
1
(iii)
1
4
(iv)
4
5
(v)
3
4
Question
6
6.
Two unbiased coins are tossed simultaneously. Find the probability of getting no head.
(i)
1
4
(ii)
2
5
(iii)
1
2
(iv)
3
4
(v)
0
Question
7
7.
Three unbiased coins are tossed simultaneously. Find the probability of getting exactly one head.
(i)
3
8
(ii)
1
4
(iii)
5
8
(iv)
4
9
(v)
1
2
Question
8
8.
Three unbiased coins are tossed simultaneously. Find the probability of getting at least one head.
(i)
3
4
(ii)
1
(iii)
8
9
(iv)
1
8
(v)
7
8
Question
9
9.
Three unbiased coins are tossed simultaneously. Find the probability of getting at least two heads.
(i)
4
5
(ii)
1
2
(iii)
2
3
(iv)
5
6
(v)
3
4
Question
10
10.
Three unbiased coins are tossed simultaneously. Find the probability of getting at most one head.
(i)
5
6
(ii)
3
4
(iii)
2
3
(iv)
4
5
(v)
1
2
Question
11
11.
Three unbiased coins are tossed simultaneously. Find the probability of getting no head.
(i)
1
8
(ii)
1
4
(iii)
7
8
(iv)
2
9
(v)
0
Question
12
12.
When two coins are tossed simultaneously, how many elementary events are possible?
(i)
1
(ii)
5
(iii)
7
(iv)
4
(v)
3
Question
13
13.
A game consists of tossing a coin 3 times and noting its outcome each time. Vikram wins if all the tosses give the same result i.e., three heads or three tails, and loses otherwise. Calculate the probability that Vikram will lose the game.
(i)
3
4
(ii)
4
5
(iii)
1
2
(iv)
1
4
(v)
1
Assignment Key
1) (iii)
2) (iv)
3) (iii)
4) (iv)
5) (v)
6) (i)
7) (i)
8) (v)
9) (ii)
10) (v)
11) (i)
12) (iv)
13) (i)