Math and Arithmetic

Statistics

Probability

789

The probability is 1. I have flipped a coin a lot more than 7 times.

each time you flip the coin, probability to end on either side is 50% (or 0.5) (we disregard landing on the side). So, to land on the same side 7 times, it is: 0.5^7

It depends on whether you mean exactly one head or at least one head. There are 8 possible outcomes: TTT, TTH, THH, HHH, HHT, HTT, HTH, THT For at least one head, the probability is 7/8, for exactly one head, the probability is 3/8.

The number is 8!/[3!(8-3)!] where n! = 1*2*3*...*n ie 8*7*6/(3*2*1) = 56

You could use it because it shows that its just 7 times 8 flipped!

They are just used to make equations and make more things like more equations and estimates!Theoretical Probability: P(event) the ratio of the number of favorable outcomes to the number of possible outcomes, written as a ratio.example: number of favorable outcomes over number of possible outcomesAmelynn is hungry, so she gets out a bowl and puts in 2 red jelly beans, 3 blue jelly beans, 12 pink jelly beans, and 3 yellow jelly beans. Amelynn likes the pink ones the best. What is the theoretical possibility of her getting a pink jelly bean?Answer: 12 over 20. (or 3 over 5 [simplest form])Explanation: Amelynn put 20 jelly beans in the bowl. She wants the pink ones, andthere are 12 pink jelly beans, which are the favorable outcomes. There are 20 jelly beans, and these are the possible outcomes. This means that it is 12 over 20. You might have to put this in simplest form as well. also this is 60% total.******************************************************************************************Experimental Probability: The number of times the outcome occurs compared to the total number of trials.example: number of favorable outcomes over total number of trials.Amelynn is flipping a coin. She finished the task one time, then did it again. Here are her results: heads: three times and tails: seven times. What is the experimental probability of the coin landing on heads?Answer: 3/10Explanation: Amelynn flipped the coin a total of 10 times, getting heads 3 times. Therefore, the answer is: 3/10 or 30%Theoretical probability ... a coin has 2 sides so the theoretical probability of flipping a coin and getting heads is 1/2.Experimental probability... flip a coin 10 time and you get 7 heads so the experimental probability of getting heads is 7/10

Okay, lets write out the possible outcomes when flipping a coin 3 times: HHH, HHT, HTH, THH, TTH,THT,HTT,TTT That constitures 8 scenarios in which the coin can fall over a 3 flip trial. Now, it is known that you got "at least one head" so therefore we can rule out the no head scenario (TTT) which leaves us with 7. Of those 7 times, how many times does it fall heads exactly twice? Well, we have HHT,HTH,THH. From this you can say that it there are 3 possible outcomes in which you get exactly two heads given that you get at least one head. 3/7.

That's the same as the total probability (1) minus the probability of seven heads. So: 1 - (1/2)7 = 127/128

There are 2+3+4+5 = 14 coins in all so 14 possible outcomes. There are 3+4 = 7 dimes or nickels ie 7 favourable outcomes. So the prob of a dime or nickel is 7/14 = 1/2

Can you PLEASE help me with this problem:Suppose a fair coin is flipped twice and the following payoffs are assigned to each of the 4 possible outcomes: H-H:win20; H-T: win 9; T-H:lose 7; T-T: lose 16what is the ecepected value of the gamble?What is the probablity of each event?Is the gamble fair?

This is easiest calculated by calculating the probability that NO SINGLE heads is obtained; this is of course the complement of the question. The probability of this is 1/2 x 1/2 x 1/2 ... 7 times, in other words, (1/2)7. The complement, the probability that at least one head is obtained, is then of course 1 - (1/2)7, or a bit over 99%.

The probability of getting 6 heads and 1 tail when flipping a fair coin 7 times is:7*(1/2)6*(1/2) = 7/128.

If it is a fair coin, the probability of getting at least one Head from 3 flips is 7/8If it is a fair coin, the probability of getting at least one Head from 3 flips is 7/8If it is a fair coin, the probability of getting at least one Head from 3 flips is 7/8If it is a fair coin, the probability of getting at least one Head from 3 flips is 7/8

I think he was 13 cause he was in 7 grade.

Your question is slightly vague, so I will pose a more defined question: What is the probability of 3 coin tosses resulting in heads exactly twice? This is a pretty easy question to answer. The three possible (winning) outcomes are: 1. Heads, Heads, Tails. 2. Heads, Tails, Heads. 3. Tails, Heads, Heads. If we look at the possible combination of other (losing) outcomes, we can easily determine the probability: 4. Heads, Heads, Heads. 5. Tails, Tails, Heads. 6. Tails, Heads, Tails. 7. Heads, Tails, Tails. 8. Tails, Tails, Tails. This means that to throw heads twice in 3 flips, we have a 3 in 8 chance. This is because there are 3 winning possibilities out of a total of 8 winning and losing possibilities.

It is 8/28 = 1/32 = 0.03125

The World record for the most car flips in a row went to casino royale, (007 movie,) it was the part where there is a carchase and the car flipped 7 times!

the probablity of getting a head is 1/2 and 7 heads consecutively is (1/2)^7

There are 8 possible outcomes when a coin is tossed 3 times. Here they are:1. Heads, Heads, Tails.2. Heads, Tails, Heads.3. Tails, Heads, Heads.4. Heads, Heads, Heads.5. Tails, Tails, Heads.6. Tails, Heads, Tails.7. Heads, Tails, Tails.8. Tails, Tails, Tails.There is only one outcome that is heads, heads, heads, so the probability of three heads coming up in three coin tosses is 1 in 8 or 0.125 for that probability.

3/7, but only if the coin is taken at random.

Seven to the sixth power would be 117,649

7 to the power of 5 is 16,807.

1 times 7 is 7 ....... 2 times 7 is 14 ....... ....... 3 times 7 is 21 ....... ....... ....... 4 times 7 is 28 ....... ....... ....... ....... 5 times 7 is 35 ....... ....... ....... ....... ....... 6 times 7 is 42 ....... ....... ....... ....... ....... ....... 7 times 7 is 49 ....... ....... ....... ....... ....... ....... ....... 8 times 7 is 56 ....... ....... ....... ....... ....... ....... ....... ....... 9 times 7 is 63 ....... ....... ....... ....... ....... ....... ....... ....... ....... 10 times 7 is 70 ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... 11 times 7 is 77 ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... 12 times 7 is 84 ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... ....... .......

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