# A Coin Must

## FAQs for A Coin Must

#### what if there were would be P(of atleast 2HH in 10 flips). We would probably not use the same method...

Short Answer: You are right, we would not use the same method. Long Answer: You would use a similar method, which involves what we've been doing. H...Read more

#### Isn't this called complementary counting? Or is it called complimentary counting? What's the differe...

It is complementary counting. Compliment has a different meaning than complement.Read more

#### So the question of P(at least 2 heads in 10 flips) was asked and the answer was P(at least 2 heads) ...

Well done! Yes, your generalization works (though you could just start the summation from k=0, to avoid separating the P(X=0) each time). Though be...Read more

#### Why do we subtract those from 1?

"1" represents the total number of possible events, or 100%. If you want to know what the probability is to get at least one Heads, then that is th...Read more

#### Any kind peeps out there to help me understand this problem in detail please? The problem goes: "Tos...

You will need to use binomial theorem for this question. So the answer is (50 C 30) (0.5^30)(0.5^20) which also equals (50 C 20) (0.5^30)(0.5^20)=...Read more

#### What is the probability that you will get heads four times in a row when flipping a fair coin

A coin has a 50% chance of landing on heads the each time it is thrown. For the first coin toss, the odds of landing heads is 50%. On the second co...Read more

#### I am not really sure when you will use this technique. Can you please explain when using 1- P(not ev...

Flip a fair coin 13 times. Find the probability of at least 1 head. We could either do: P( X ≥ 1 ) = P( X=1 ) + P( X=2 ) + P( X=3 ) + P( X=4 ) + .....Read more

#### What does the "Fair" in fair coin represent; what does it mean?

Fair means that the coin has a 50-50% chance of getting HEADS or TAILS. They have that because in some other situations, there are "unfair" coins t...Read more

#### Can you solve this without listing down all the possible scenarios(HHH,HHT,HTH...)

That works for the denominator, but what about solving for the numerator?Read more

#### What if we have 20 tosses?? We cant possibly draw every one of them out, and then count exactly two ...

I'd do it like this: Total possible outcomes is 2^20 - That's 2 possible outcomes per throw, times itself 20 times because it happens 20 times over...Read more

#### Why do you count THH, HTH, and HHT as 3 separate outcomes?

They are different outcomes because they are not in the same order. If there were different colored cookies in a box and your grandma picked three...Read more

#### When Sal was listing the possible outcomes, he wrote THH and HHT as different outcomes. Aren't they ...

Well in this specific problem he is taking into account that order matters. The order might matter depending on the situation but the situation. Le...Read more

#### are there any simpler ways of doing probability???

Yes. Before solving a probability problem, first ask yourself whether events are independent or not. If they are, then we are in good shape. what w...Read more

#### Why do you have to draw out the possibilities? Is there some kinda program that can help you with th...

Since each coin has 2 possibilities, head or tails, we can do 2*2*2, since there are 3 coins, to find the total number of possibilities. Since ther...Read more

#### How can you call it exactly two heads, when you have an additional coin flip to count and whatever t...

Perhaps it would be better if he said "getting exactly two heads and one tail". I think most people understand that that's what he means, though.Read more

#### I still don't follow the argument for using combinations in which order does not matter in this ques...

If order matters then HHT where the first H goes before the second H would be different from HHT where the second H lands before the first. HHT wou...Read more

#### Can someone explain the problem below please? A multiple-choice question on an economics quiz contai...

What is important here is that we have to get exactly 9 questions correct, but the question didn't constrain us that which question we have to get...Read more

### "At least one" probability with coin flipping - Khan Academy

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WEBAug 9, 2011 · So if you flip a coin 10 times in a row-- a fair coin-- you're probability of getting at least 1 heads in that 10 flips is pretty high. It's 1,023 over 1,024. And you can get a calculator out to figure that out in terms of a percentage.

### All the ways you can flip a coin | Probability (video) | Khan Academy

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WEBNov 15, 2011 · Usually, coins used in probability problems are only assumed to have two outcomes: heads or tails. The possibility of a coin landing on its side is ignored in most problems. A coin can …

### Just Flip A Coin! Instant 50/50 Coin Toss. Heads or …

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WEBSince 2010, Just Flip A Coin is the web’s original coin toss simulator. This fast, easy to use tool utilizes code which generates true, random 50/50 results. To play, simply click/tap the coin.

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### Coin Flip Probability Calculator

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OverviewCoin FlipCalculate ProbabilityTeenager & Love Life

### Theoretical and experimental probability: Coin flips and die rolls

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WEBPart 1: Flipping a coin. question a. A fair coin has 2 sides (heads and tails) that are equally likely to show when the coin is flipped. What is the theoretical probability that a fair coin …

### probability - Expected Value of Flips Until HT Consecutively ...

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WEBSuppose you ﬂip a fair coin repeatedly until you see a Heads followed by a Tails. What is the expected number of coin ﬂips you have to ﬂip? By manipulating an equation …

### Valuable Coins in the U.S.: Everything You Need to …

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WEBJul 18, 2018 · Coin collecting is one of the most popular pastimes. Learn its origins, factors that determine coin value & see some of the most valuable coins in the U.S.

### What's my coin worth? U.S. coin prices. Values for …

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WEBOct 28, 2017 · Do you have valuable coins? Do you know what your coin's worth? See U.S. coin prices, with values for the most common dates of all U.S. coins.

### The Number of Times a Coin Needs to Be Flipped Until Head …

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WEB131 8. The wording of the first sentence seems to imply that by this many coin tosses, we will certainly have had a throw of heads. This is not true - there is no number of coin

### Basics Every Coin Collector Should Know - American …

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WEBBasics Every Coin Collector Should Know - American Numismatic Association. John McFarland. Several online numismatic coin forums have been abuzz lately with people new to the hobby, often wondering if the …

### Top 10 Coins Worth Collecting - Investment List - The …

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WEBMar 24, 2022 · Top 10 coins that every coin collector should have in their collection. Historically, these coins have also performed well as investments.

### Life of a Coin | U.S. Mint for Kids - United States Mint

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WEBA circulating coin begins its life as an idea. Once the U.S. Mint designs and makes the coin, it gets passed around to people and businesses before it retires. Follow the life of a coin …

### 15 Best Coins To Collect in 2023 - Gainesville Coins

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WEBNov 16, 2020 · It’s challenging to slim a binder of hundreds of potential candidates down to just 15. This list consists of a diverse array of U.S. coins to collect, including valuable …

### Tossing A Coin | Probability | Formula | Calculator - Cuemath

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WEBLesson Plan. What Are the Possible Events that Can Occur When A Coin Is Tossed? Every coin has two sides: Head and Tail. We denote Head as H and Tail as Tail. When a coin

### Cryptocurrency and Bitcoin: Here's What to Know - The New …

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WEBJun 8, 2022 · What is DeFi? What is an NFT? What is a stablecoin? What is web3? What is ‘the Merge’? What is a Bitcoin? A Bitcoin is a digital token that can be sent electronically …

### When Do Coins Become Valuable? - The Collectors Guides Centre

WEBFeb 18, 2024 · The answer is that coins can become valuable at any time. The key is knowing the value of your coin and what makes it valuable. The value of a coin depends …

### A Beginner’s Guide to Bitcoin and Cryptocurrency - CNET

WEBWhat is bitcoin? Simply put, bitcoin is a digital currency. No bills to print or coins to mint. It’s decentralized -- there’s no government, institution (like a bank) or other authority that...

### 7 Must-Have Coins Your Coin Collection Can't Be Without - U.S.

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WEBThankfully for coin collectors of every budget, the 7 coins you must have in your coin collection aren’t expensive. These 7 coins are affordable symbols of another time and …

### Bitcoin Is A Cryptocurrency, But Is It Money? - Forbes

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WEBMar 23, 2021 · A cryptocurrency is a software object with units or “tokens” that can be transferred securely and verifiably from one owner to another. Transactions are recorded …

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In today's episode we paid \$30000000.00 starting with 5000 quarters then we attempt to knock down a huge building of poker ...

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In today's video we paid \$20000000.00 for 20 quarters then we attempt to knock down the worlds biggest poker chip tower inside ...