3 of them.
The probability is 0.375
23 or 8 outcomes. In any experiment with two outcomes, if you do the experiment n times there are 2n outcomes. This about each time you roll the coin have two possible outcomes, H or T. So if you roll it 2 times, you have 4 possible outcomes. HH, HT, TH or TT. Do it one more time and you have 8 outcomes. HHH, HHT, HTH, THH TTT TTH THT HTT Notice there are 1 outcome with 3 heads, 1 with 3 tails 3 with two heads 3 with two tails This pattern follow the binomial theorem. The coefficients of the binomial (H+T)3 are 1 3 3 1. The same numbers as we have above!
The probability of flipping one coin and getting tails is 1/2. In order to find the probability of multiple events occurring, you find the product of all the events. For 3 coins the probability of getting tails 3 times is 1/8 because .5 x .5 x .5 = .125 or 1/8.
3
When flipping a coin, there are 2 possible outcomes. When flipping 3 coins there are 8 possible outcomes (2^3=8). As for the situation described, there is only one way for it to not be true, if all the coins land on the same side. So either all heads or all tails. This leaves 8-2=6 possible outcomes resulting in the above situation. Therefore the probability of the given situation is 6/8 or 3/4=75%
The answer depends on how many coins are flipped, and how often.
9
The probabilty of you flipping 3 coins and getting all heads or tails is 0.125 or 1/8.
3 of them.
If they are fair coins, the probability is 0.25
The probability of flipping three tails with three coins is (1 in 2)3 or 1 in 8 or 0.125.
-- 8 possibilities if the coins are different colors. -- Only 4 possibilities if you can't tell the coins apart.
http://wiki.answers.com/Q/If_you_Flip_four_coins_at_once_what_is_probability_of_2_head_and_3_tail" The probability of flipping four coins and getting 2 heads and 3 tails is ZERO 2 heads and 3 tails requires flipping FIVE coins.
75% is not correct. The odds of flipping 4 independent coins is the same as flipping one coin 4 times. The number of outcomes of 4 flips is 2^4 or 16. The number of ways to exactly get 3 Heads is 4 (THHH, HTHH, HHTH, HHHT) so your chance of flipping 3 heas is 4/16 or 25%. If you include the occurance that produced 4 of 4 Heads, then you get 5/16 or 31.25%.
Assuming that if you had 3 coins and they were all the same, then no, the outcomes would not be different than if you flipped the same coin 3 times. Flipping a coin has a 1/2 chance of landing on 1 face, and 1/2 chance that it will land on the other: -Flipping the same coin 3 times: 1/2 chance of the coin landing on one face -Flipping 3 coins one time each: Still 1/2 chance of each of the 3 coins landing on one face. These chance percentages are fairly vague. Of course there is an absolute minuscule percentage that the coin(s) could land on their side instead of either face or that one side could have a higher chance than the other, but the chances of that happening are so small there is no point complicating this answer and so extreme details like this are ignored.
There are eight possible outcomes: HHH, HHT, HTT, HTH, THT, TTT, TTH, THH.