Sage-Tips

What is the probability of getting one head when 3 coins are tossed?

If you flip a coin three times the chance of getting at least one head is 87.5\%.

How many outcomes are there when 3 coins are tossed?

8 possible outcomes
If we toss three coins, we have a total of 2 × 2 × 2 = 8 possible outcomes: HHH, HHT, HTH, HTT, THH, THT, TTH, and TTT, as shown in Figure 6.4 b. Figure 6.4 b Tree diagram showing the outcomes of tossing three coins.

How many outcomes when a coin is tossed 3 times?

8 outcomes
When you flip a coin 3 times, then all the possibe 8 outcomes are HHH, THH, HTH, HHT, TTH, THT, HTT, TTT.

What is the probability of tossing 3 coins at random?

Hence the required probability is 3/8. Example 2: In an experiment, three coins are tossed simultaneously at random 250 times. It was found that three heads appeared 70 times, two heads appeared 55 times, one head appeared 75 times and no head appeared 50 times. find the probability of:

When 3 unbiased coins are tossed once what are the possible outcomes?

When 3 unbiased coins are tossed once. When 3 coins are tossed, the possible outcomes are HHH, TTT, HTT, THT, TTH, THH, HTH, HHT. (i) Let E 1 denotes the event of getting all tails. Hence the required probability is ⅛. (ii) Let E 2 denotes the event of getting two heads.

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.

What is the probability that the second coin flip is a head?

If we are give the information that “the first coin was a head” then, from, HH, HT, TH, TT, would remove both TT and TH. That leaves only HH and HT so that the probability that the second flip is also a head is 1/2.