Page 7 - Digi notes maths
P. 7
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PRACTICE TIME
1. A fair coin is tossed at random. Find the probability of getting:
1) Head
2) Tail
S ,TH n 2s
H
n 1
. 1 P H
n s 2
T
. 2 P T n 1
n s 2
2. Two unbiased coins are tossed simultaneously at random.
Find the probability of getting:
1) Head on the first coin.
2) Head on the second coin.
3) Head on both the coins.
4) No heads.
5) At least one head.
6) At most one head.
Page 7 of 20
www.mahendraguru.com
PRACTICE TIME
1. A fair coin is tossed at random. Find the probability of getting:
1) Head
2) Tail
S ,TH n 2s
H
n 1
. 1 P H
n s 2
T
. 2 P T n 1
n s 2
2. Two unbiased coins are tossed simultaneously at random.
Find the probability of getting:
1) Head on the first coin.
2) Head on the second coin.
3) Head on both the coins.
4) No heads.
5) At least one head.
6) At most one head.
Page 7 of 20
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