Table of Contents
- 1 What is the probability of getting an even number of heads?
- 2 What is the probability of getting a head on the first toss?
- 3 What is the probability of odd number when a dice is thrown?
- 4 What is the probability of getting at least 2 heads?
- 5 What is the probability of getting h from a coin toss?
- 6 How do you find the second toss of a coin?
What is the probability of getting an even number of heads?
512/210
So the probability of getting an even number of heads is 512/210 and that turns out to be exactly ½. In- deed, 512 is equal to 29 and that’s half of 210, and the game is fair!
What is the probability of getting a head on the first toss?
50\%
The probability of heads on the first toss is 50\%, just as it is on all subsequent tosses of the coin. The two outcomes of the toss of a coin are heads or tails. For any individual toss of the coin, the outcome will be either heads or tails.
What is the probability for an even number of heads if you flip n coins?
If there are an even number of heads then there must be an odd number of tails. But heads and tails are symmetrical, so the probability must be 1/2. The number of all possible outcomes is 512 thus the probability to get even number of heads is 0.5.
What is the probability of getting at least 1 head in tossing 2 coins together?
Probability of getting at least 1 head. Let E be event of getting at least 1 head. Then, E = {(HH , HT, TH} Therefore, n(E) = 3. Therefore, P(getting at least 1 head) = P(E) = n(E)/n(S) = 3/4.
What is the probability of odd number when a dice is thrown?
three out of six
The probability when rolling a regular six-sided dice that the score is an odd number is three-sixths or three out of six.
What is the probability of getting at least 2 heads?
1/2
Answer: If you flip a coin 3 times, the probability of getting at least 2 heads is 1/2.
What are the odds of the second toss being a head?
So, the odds of the second being heads is 1/2. The odds of both being heads is 1/4. If you did 49 flips – and they all came up heads – the odds of the next one being heads is still 1/2. P ( A ∣ B) = P ( A ∩ B) P ( B). Let A be the event of heads on the second toss, and B the event of first toss being a head.
What is the probability of the second flip being a head?
That leaves only HH and HT so that the probability that the second flip is also a head is 1/2. the two events are unrelated, the outcome of the second is (as mentioned) independent of the first. So, the odds of the second being heads is 1/2. The odds of both being heads is 1/4.
What is the probability of getting h from a coin toss?
If the coin is a fair coin, the results of the first toss and the second are independent, so there are exactly two possibilities for the second toss: H and T. The probability of getting H is 1/2. Don’t forget, the coin may have been tossed thousands of times before the one we care about.
How do you find the second toss of a coin?
Let A be the event of heads on the second toss, and B the event of first toss being a head. Then P ( A ∣ B) = 1 / 4 1 / 2 = 1 / 2. If the coin is a fair coin, the results of the first toss and the second are independent, so there are exactly two possibilities for the second toss: H and T.