Asked by anonymous
a) What is the probability of obtaining 2 Heads when a coin is tossed twice?
b) What is the probability of obtaining 1 Head when a coin is tossed twice?
Keep in mind, the coins are not tossed simultaneously.
b) What is the probability of obtaining 1 Head when a coin is tossed twice?
Keep in mind, the coins are not tossed simultaneously.
Answers
Answered by
Arora
Taking H = getting heads, and T = getting tails,
The sample space of the event of tossing a coin twice is as follows:
S = {(H,H),(T,H),(H,T),(H,H)}
There are a total of four outcomes.
Probability of an event = (Favourable outcomes/Total outcomes)
a) Fav. outcomes = 1
P(E) = 1/4
b) Fav. outcomes = 2
P(E) = 2/4 = 1/2
The sample space of the event of tossing a coin twice is as follows:
S = {(H,H),(T,H),(H,T),(H,H)}
There are a total of four outcomes.
Probability of an event = (Favourable outcomes/Total outcomes)
a) Fav. outcomes = 1
P(E) = 1/4
b) Fav. outcomes = 2
P(E) = 2/4 = 1/2
Answered by
Reiny
PS, your question made the point:
"Keep in mind, the coins are not tossed simultaneously."
The outcomes of two coins tossed simultaneously or a single coin tossed twice in succession would be the same.
The same would be true for 3 coins tossed simultaneously or a single coin tossed 3 times in succession,
4 coins ... , etc.
"Keep in mind, the coins are not tossed simultaneously."
The outcomes of two coins tossed simultaneously or a single coin tossed twice in succession would be the same.
The same would be true for 3 coins tossed simultaneously or a single coin tossed 3 times in succession,
4 coins ... , etc.
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