Flag 8 grade maths> Three different coins are tossed together...
question mark

Three different coins are tossed together. Find the probability of getting:A.Exactly two headsB.At least two headsC.At least two tails

Aniket Singh , 9 Months ago
Grade
anser 1 Answers
Askiitians Tutor Team

We are tossing three different coins, so there are 2 possibilities (heads or tails) for each coin. The total number of possible outcomes is:

2 * 2 * 2 = 8.

These 8 outcomes are:

HHH
HHT
HTH
HTT
THH
THT
TTH
TTT
A. Probability of getting exactly two heads:
We need to count the outcomes with exactly two heads. These are:

HHT
HTH
THH
There are 3 outcomes with exactly two heads. The probability is the number of favorable outcomes divided by the total number of outcomes:

P(exactly two heads) = 3/8.

B. Probability of getting at least two heads:
At least two heads means we have either two heads or three heads. The outcomes with at least two heads are:

HHH
HHT
HTH
THH
There are 4 outcomes with at least two heads. The probability is:

P(at least two heads) = 4/8 = 1/2.

C. Probability of getting at least two tails:
At least two tails means we have either two tails or three tails. The outcomes with at least two tails are:

HTT
THT
TTH
TTT
There are 4 outcomes with at least two tails. The probability is:

P(at least two tails) = 4/8 = 1/2.

Final Answers:
A. P(exactly two heads) = 3/8
B. P(at least two heads) = 1/2
C. P(at least two tails) = 1/2

Last Activity: 9 Months ago
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments