
Theoretical&Experimental Probability please help!
Please check my work thanks!! A number cube with the numbers 1 through 6 is rolled. Find the given probability. 1. P(number < 2) (1 point) A. 1/6
asked by Matthew on March 6, 2013 
Math
A coin is biased so that a head is twice as likely to occur as a tail. If the coin is tossed 3 times, what is the probability of getting 2 tails and 1 head? What do you mean by biased in probability?
asked by Jen on October 15, 2015 
english
1. Which of the following sources is least likely to have been edited for accuracy? (1 point) a city newspaper a personal Web site an encyclopedia article a published book 2. Which of the following is NOT true about bias? (1 point) Using both biased and
asked by kate on August 15, 2014 
Math
Luis has a coin that is weighted so that the probability that Heads appears when it is tossed is 0.55. Suppose that the coin is tossed 3 times. What is the probability that all 3 tosses are Heads? please help ,e to solve this question . i dont'know if i
asked by sajid on February 17, 2012 
math
a student claims that if a fair coin is tossed and comes up heads 5 times in a row, then according to the law of averages the probability of tails on the next toss is greater than the probability of heads. What is your reply?
asked by Charles on January 31, 2010 
World History
Which of the following is NOT true about bias? Answer: a) Using both biased and nonbiased resources in research will create bias results b) Bias can be identified by the facts that the Web site includes as well as the facts that are excluded c) In a
asked by Steve on August 5, 2015 
Math
10. A coin is loaded so that the probability of heads is 0.55 and the probability of tails is 0.45, Suppose the coin is tossed twice and the results of tosses are independent. a.What is the probability of obtaining exactly two heads? b.What is the
asked by Renee on March 2, 2014 
Math
Alice has two coins. The probability of Heads for the first coin is 1/4, and the probability of Heads for the second is 3/4. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The
asked by Anonymous on July 23, 2019 
Maths
The probability of a biased coin landing on heads is 0.6. I flip the coin 150 times, how many times would the coin land on heads?
asked by Anonymous on September 8, 2016 
Algebra Probability
A coin is tossed twice. What is the probability of tossing heads, and then tails, given that the coin has already shown heads in the first toss?
asked by Algebra Probability on March 18, 2018 
maths : probability
We are given a biased coin, where the probability of Heads is q. The bias q is itself the realization of a random variable Q which is uniformly distributed on the interval [0,1]. We want to estimate the bias of this coin. We flip it 5 times, and define the
asked by Anonymous on December 18, 2018 
probability
We are given a biased coin, where the (random) bias Θ is uniformly distributed on [0,1] . We toss this coin, until we see Heads for the first time. Our goal is to estimate Θ using our observation. 1. Find the LMS estimator (ΘˆLMS) for Θ . Your answer
asked by Jimbo on August 27, 2019 
Stat.
A trick coin has been weighted so that heads occurs with a probability of p 2 3, and p(tails) 1 3. If you toss this coin 72 times, a. How many heads would you expect to get on average? b. What is the probability of getting more than 50 heads? c.
asked by Nickie on January 27, 2013 
Probability
A coin is tossed 1000 times,out of which we observe 560 heads,the question of interest is whether the coin is biased or not?
asked by SR on April 6, 2017 
maths(pls help me)
A fair coin is tossed 400 times.Use the normalcurve approximation to find the probability of obtaining: a.Between 185 and 210 heads inclusive. b.Exactly 205 heads. c.less than 176 or more than 227 heads.
asked by farahan on May 14, 2016 
Probability
A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDF fQ(q)={3q2,0,if q∈[0,1],otherwise. A coin produced by this machine is tossed repeatedly, with successive tosses assumed to be independent. Let A be
asked by A on April 2, 2014 
Probability
Let Θ be a continuous random variable that represents the unknown bias (i.e., the probability of Heads) of a coin. a) The prior PDF fΘ for the bias of a coin is of the form fΘ(θ)=aθ9(1−θ), for θ∈[0,1], where a is a normalizing constant. This
asked by Anonymous on April 5, 2020 
Math
A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there
asked by Steve on June 10, 2018 
probability
Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p, where 0
asked by vu on February 27, 2014 
Statistics
A coin was flipped 60 times and came up heads 38 times. (a)at the .10 level of significance, is the coin biased towards heads? Show your decision rule and calculations. (b) calculate a pvalue and interpret it.
asked by Gayla on June 8, 2008 
Word Problem
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a pvalue and interpret it.
asked by Marilyn on September 28, 2008 
CALC
A biased coin whose chance of heads is 0.4 is tossed five times in a row. What is the probability that heads is tossed exactly 2 times? 20.2% 23.04% 36.8% 40.1% 45.6%
asked by Leandra on November 27, 2012 
Finite Math
A coin is loaded, so that the probability of a head occuring on a single toss is 2/3. In six tosses of the coin, what is the probability of getting all heads or all tails?
asked by Carol on September 27, 2012 
Math
6. Biased coin Bookmark this page Problem 5. Biased coin 5.0 points possible (graded, results hidden) We are given a biased coin, where the probability of Heads is q. The bias q is itself the realization of a random variable Q which is uniformly
asked by YuLin on December 18, 2018 
probablity
We are given a biased coin , where the probability of heads is q. he bias q is itself the realization of a random variable Q which is uniformly distributed on the interval [0,1]. We want to estimate the bias of the coin. We flip it 5 times, and define
asked by Anonymous on December 23, 2018 
Math
"The probability of getting heads on a biased coin is 1/3. Sammy tosses the coin 3 times. Find the probability of getting two heads and one tail". I thought that all you have to do is: (1/3)(1/3)(2/3) It makes sense to me, but it's not right...
asked by Stuck on May 3, 2010 
Math (statistics)
The probability of obtaining heads on a biased coin is 0.4. The coin is tossed 600 times. a. i. Write down the mean number of heads (240) ii. Find the standard deviation of the number of heads (12) b. Find the probability that the number of heads obtained
asked by Myra on March 16, 2016 
Statistics
I have two coins: a quarter and a nickel. The quarter has a bias of 1/4 for heads, and the nickel has a bias of 2/3 for heads. I flip each coin 10 times. What is the probability that I observe exactly five heads total? Some explanation of the solution
asked by Ben on November 29, 2013 
math
We are given a biased coin, where the (random) bias Θ is uniformly distributed on [0,1] . We toss this coin, until we see Heads for the first time. Our goal is to estimate Θ using our observation. Find the LMS estimator ΘˆLMS for Θ . Your answer
asked by x on September 3, 2019 
probability
Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p, where 0
asked by Johan on June 6, 2019 
Statistics
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a pvalue and interpret it
asked by Robert on June 6, 2010 
PRECALC
A biased coin has a 0.4 probability of landing on tails. The random variable X, based on a single toss of the coin, is defined as follows: X = 0 if heads appears; X = 1 if tails appears. What is the mean value of X? A) 0.7 B) 0.5 C) 0.4 D) 0.3 E) 0.6
asked by Anonymous on March 24, 2014 
statistics
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. I need more than the answer. I'm looking for help on the steps to get to the answer,
asked by Laura on December 1, 2011 
Probability
Alice has two coins. The probability of Heads for the first coin is 1/3, and the probability of Heads for the second is 2/3. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The
asked by A on April 2, 2014 
statistics
You have two coins that look identical, but one of them is fair and the other is weighted. The weighted coin has a 3/4 chance of flipping heads and a 1/4 chance of flipping tails. Unfortunately, you've forgotten which coin is which! You decide to keep
asked by unowen on July 13, 2017 
probability
A coin is biased such that a head is thrice as likely to occur as a tail. Find the probability distribution of heads and also find the mean and variance of the distribution when it is tossed 4 times. See
asked by mohsin on January 21, 2007 
MathProbability
Consider a collection of n biased coins, each showing Heads with probability p and Tails with probability 1p , independently of the others. The coins are tossed and all coins showing Heads are collected together and tossed again. Write down an expression
asked by sand on January 22, 2012 
Math
A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDF fQ(q)={5q4,0,if q∈[0,1],otherwise. A coin produced by this machine is tossed repeatedly, with successive tosses assumed to be independent. Let A be
asked by Anonymous on July 23, 2019 
mathprobability
A student claims that if a fair coin is tossed and comes up heads 5 times in a row, then, according to the law of averages, the probability of tails on the next toss is greater than the probability of heads. What is your reply?
asked by jennifer on April 19, 2010 
math
In a game, a player tosses a coin 4 times. If the player gets 3 or 4 heads, he/she wins. What is the theoretical probability of winning this game? I just need to know the outcomes. I don't know how to get them. Please and Thank you. Coin 1: 50% Heads Coin
asked by Angela on May 30, 2007 
Math
A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there
asked by Steve on June 13, 2018 
probability
Let È be the bias of a coin, i.e., the probability of Heads at each toss. We assume that È is uniformly distributed on [0,1]. Let K be the number of Heads in 9 independent tosses. By performing some fancy and very precise measurements on the structure of
asked by alec on April 14, 2015 
Math
A biased coin lands heads with probabilty 2/3. The coin is tossed 3 times a) Given that there was at least one head in the three tosses, what is the probability that there were at least two heads? b) use your answer in a) to find the probability that there
asked by Steve on June 11, 2018 
Maths
On a biased coin the probability of it showing heads for a given coin toss is 0.52. In a sequence of tosses, what is the probability of getting the first tail on flip 5? I can just do a tree diagram for this and figure it out the slow way, but if I get
asked by Hannelore on June 6, 2017 
Probability
Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p, where 0
asked by Jonathan on March 3, 2015 
math, probability
We are given a biased coin, where the (random) bias Θ is uniformly distributed on [0,1] . We toss this coin, until we see Heads for the first time. Our goal is to estimate Θ using our observation. 1. Find the LMS estimator ΘˆLMS for Θ . Your answer
asked by anon on August 31, 2019 
probability
urgent till 3 pm i have in colombia¡ 1 Alice has five coins in a bag: two coins are normal (i.e., fair with one face Heads and the other face Tails), two are doubleheaded (i.e., both sides are Heads), and the last one is doubletailed (i.e., both sides
asked by Sakura1 on March 11, 2014 
Math (Urgent!)
Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p , where 0
asked by Sean on October 2, 2018 
probability
Adefective coin minting machineproducescoinswhoseprobability ofheadsisarandomvariable P with PDF 1+sin(2πp), if p ∈ [0,1],fP (p)= 0, otherwise. Inessence,aspecificcoinproducedby thismachinewillhavea fixedprobability P = p of giving heads, but you do not
asked by Anonymous on November 8, 2015 
Probability
Alice has five coins in a bag: two coins are normal (i.e., fair with one face Heads and the other face Tails), two are doubleheaded (i.e., both sides are Heads), and the last one is doubletailed (i.e., both sides are Tails). She reaches into the bag and
asked by qwerty on March 7, 2014 
Math
A biased coin is tossed 3 times. The probability that the coin will land on heads is 0.6 The probability that the coin will land on tails three times is less than 0.1 Is this correct? Show all your working.
asked by Geny on April 23, 2016 
Maths
The probability of getting heads on a biased coin is 0.6. what is the probability of getting tails on this coin?
asked by anonymous on January 10, 2015 
statistics
A coin is biased so that the probability of obtaining a head is 2/3. The coin is tossed four times. Find the probability of obtaining exactly two heads.
asked by Laura on June 21, 2016 
Probability
Consider 10 independent tosses of a biased coin with the probability of Heads at each toss equal to p , where 0 < p < 1 . 1. Let A be the event that there are 6 Heads in the first 8 tosses. Let B be the event that the 9th toss results in Heads. Find P(BA)
asked by qwerty on February 28, 2014 
Probability
Bob has two coins, A and B, in front of him. The probability of Heads at each toss is p=0.5 for coin A and q=0.9 for coin B. Bob chooses one of the two coins at random (both choices are equally likely). He then continues with 5 tosses of the chosen coin;
asked by stud81 on October 3, 2018 
Conditional Probability
Please refer to the illustration at screenshotsfirefoxcom/jZoizoMJf8a3H0UZ/ds055uzetaobbcloudfrontnet to help answer the following question: Zeb's coin box contains 8 fair, standard coins (heads and tails) and 1 coin which has heads on both sides. He
asked by unowen on February 26, 2018 
Probability
Bob has two coins, A and B, in front of him. The probability of Heads at each toss is p=0.5 for coin A and q=0.9 for coin B.Bob chooses one of the two coins at random (both choices are equally likely).He then continues with 5 tosses of the chosen coin;
asked by Anonymous on October 6, 2018 
statistics
you and 50 coworkers decide to play a game that consists of flipping a coin once for each coworker. If the flip coin for the particular coworker results in a head, you have to pay them $1. If it results in tail, neither party has to pay anything. Given the
asked by leshonda on March 25, 2011 
Probabilty
Biased coin has a 0.4 probability of landing on tails. The random variable x, based on a single toss of the coin, is defined as follows: x=0 if heads appears; x=1 if tails appears. What Is the mean value of X? Is it . 0.3 .4 .6 .5 .7
asked by Gilbert on November 28, 2012 
algebra I
If you toss a coin, the probability of gettig heads is 1/2. If you toss a coin 2 times. the probability of getting heds each time is 1/2*1/2 or (1/2)^2. Write an expression to represent the probability of tossing a coin 'n' times and getting 'n' heads.
asked by Joanne on February 7, 2008 
math
a fair coin is tossed in the air 4 times. if the coin lands heads up the first three tosses, what is the probability the coin will land heads up the fourth toss? I think it is 1/2 because the coin has 2 sides and 50% it will land on heads. My friend thinks
asked by Ellie on May 12, 2013 
Probability
Bob has two coins, A and B, in front of him. The probability of Heads at each toss is p=0.5 for coin A and q=0.9 for coin B. Bob chooses one of the two coins at random (both choices are equally likely). He then continues with 5 tosses of the chosen coin;
asked by stud81 on October 3, 2018 
math, normal distributions
A coin is weighted so that the probability of obtaining a head in a single toss is .4. If the coin is tossed 25 times, what is the probability of obtaining: a) Fewer than 10 heads? b) Between 10 and 12 heads, inclusive? c) More than 15 heads? This is what
asked by lijm on December 3, 2019 
probability
You flip a fair coin (i.e., the probability of obtaining Heads is 1/2) three times. Assume that all sequences of coin flip results, of length 3, are equally likely. Determine the probability of each of the following events. {HHH}: 3 Heads incorrect {HTH}:
asked by JuanPro on February 7, 2014 
math
Alice has two coins. The probability of Heads for the first coin is 1/4, and the probability of Heads for the second is 3/4. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The
asked by Adam on July 15, 2019 
Statistics and Probability
Alice has two coins. The probability of Heads for the first coin is 1/4, and the probability of Heads for the second is 3/4. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The
asked by Anonymous on November 4, 2018 
math
Alice has two coins. The probability of Heads for the first coin is 1/4, and the probability of Heads for the second is 3/4. Other than this difference, the coins are indistinguishable. Alice chooses one of the coins at random and sends it to Bob. The
asked by Adam on July 14, 2019 
probability distribution
A coin is biased such that a head is thrice as likely to occur as a tail. Find the probability distribution of heads and also find the mean and variance of the distribution when it is tossed 4 times. P(head) + P(tail) = 1 P(head) = 3 P(tail) Solving gives:
asked by queen on January 18, 2007 
statistics
An unfair coin has a probability of coming up heads of 0.55 the coin is tossed 4 times. What is the probability that it lands heads at least once?
asked by gio on October 17, 2016 
Probability
Suppose that an unfair coin comes up heads 54.1% of the time. The coin is flipped a total of 13 times. a) What is the probability that you get exactly 6 heads? b) What is the probability that you get exactly 6 tails? c) What is the probability that you get
asked by Vikki on February 24, 2012 
Statistics
A coin is tossed 8 times. The probability of getting a head on any one toss is 0.5. To the nearest thousandth, find the probability of getting 4 heads. P(4 heads)=we want 4 of 8 heads 8 nCr 4 (1/2)^4(11/2)^84 70(1/16)*(1/2)^4 I am lost from here
asked by Keonn'a on October 14, 2018 
probability
As in the previous exercise, let È be the bias of a coin, i.e., the probability of Heads at each toss. We assume that È is uniformly distributed on [0,1]. Let K be the number of Heads in 9 independent tosses. We have seen that the LMS estimate of K is
asked by alec on April 14, 2015 
arithmetic
Assume you have an unfair coin  the one that lands heads with probability P (not known beforehand). You have rolled such a coin 20 times and got 16 heads and 4 tails. What is the best estimator of P, Pˆ? (Hint: it is the one based on sample mean.)
asked by Anonymous on June 1, 2013 
math
A defective coin minting machine produces coins whose probability of Heads is a random variable Q with PDF fQ(q)={5*q^4 if q∈[0,1] A coin produced by this machine is tossed repeatedly, with successive tosses assumed to be independent. Let A be the event
asked by Adam on July 13, 2019 
statistics
Problem 2. Hypothesis test between two coins5 points possible (graded)Alice has two coins. The probability of Heads for the rst coin is , and the probability of Heads for the second is . Other than thisdierence, the coins are indistinguishable. Alice
asked by andi on November 3, 2018 
Math
If we flip a coin three times what is the theoretical probability of getting zero heads, one heads, two heads, and three heads PLEASE ANSWER
asked by Briley on April 2, 2020 
statistics and probabilities
You have two coins that look identical, but one of them is fair and the other is weighted. The weighted coin has a 3/4 chance of flipping heads and a 1/4 chance of flipping tails. Unfortunately, you've forgotten which coin is which! You decide to keep
asked by unowen on July 10, 2017 
Probability
What is the probability of flipping a coin two times and getting no heads? If I flip a coin twice and get no heads wouldn't it be 2/2 or 1?
asked by bwb on April 28, 2010 
math
1. what is the probability of getting exactly one heads from three coin tosses? is the answer 1/8? 2. what is the probability that a fair coin will land heads up three times in a row? is the answer 3/2?
asked by jakkie j on August 4, 2009 
prob and stats
A coin is weighted so that the probability of obtaining a head in a single toss is 0.37. If the coin is tossed 27 times, find the following probabilities. Round your standard normal variable to two decimal places before using the table of values. (Give
asked by br0Ok3 on October 15, 2010 
statistics
A coin is tossed 3 times. Find the probability that all the 3 are heads (A) if it is known that the first is heads (B) if it is known that the first 2 are heads (C) if it is known that the 2 of them are heads
asked by Joseph on February 7, 2015 
math
A coin is tossed 3 times. Find the probability that all the 3 are heads (A) if it is known that the first is heads (B) if it is known that the first 2 are heads (C) if it is known that the 2 of them are heads
asked by Joseph on February 7, 2015 
Statistics
A loaded coin is tossed 5 times, find the probability distribution for the number of heads, if heads are thrice likely to occur than tails. Let x be the number of heads that will turn up. Compute the probability associated to each value of X using the
asked by Sapphire on July 25, 2011 
Math
Suppose you have a coin that lands on Heads with probability 0.6 There are three coin flips defined as X. Heads count 1 and tails count 0 – e.g., if three heads then X= 3; if a head and two tails then X = 1; if three tails the X = 0. What is the expected
asked by Marc on September 11, 2016 
math
A student claims that if a fair coin is tossed and comes up heads 5 times in a row, then, according to the law of averages, the probability of tails on the next toss is greater than the probability of heads. What is your reply? would this be the answer No
asked by crystal on April 21, 2010 
Probability
We have a red coin, for which P(Heads)=0.4, a green coin, for which P(Heads)=0.5 and a yellow coin for which P(Heads)=0.6. The flips of the same or of different coins are independent. For each of the following situations, determine whether the random
asked by Alex on November 24, 2018 
MathProbability
Consider a collection of n biased coins, each showing Heads with probability p and Tails with probability 1p , independently of the others. The coins are tossed and all coins showing Heads are collected together and tossed again. Write down an expression
asked by sand on January 24, 2012 
MathProbability
Consider a collection of biased coins, each showing Heads with probability and Tails with probability , independently of the others. The coins are tossed and all coins showing Heads are collected together and tossed again. Write down an expression for the
asked by sand on January 22, 2012 
statistics
S) Suppose we want to determine the (binomial) probability (p) of getting 5 heads in 15 flips of a 2sided coin. Using the Binomial table in the appendix of the text, what values of n, x, and p would we use to look up this probability, and what would be
asked by slomomo on February 17, 2015 
math of investment
Suppose the probability of a coin coming up heads is 2/5. The coin is tossed 4 times (the tosses are independent), and Jane will win $5 for each head. If all 4 tosses are heads, she will get $100 extra. She never loses money. a)what is the probability that
asked by Anonymous on March 20, 2010 
Probability
Imagine that you have a coin and you are flipping it 10 times. After the 5th toss the coin has come up heads 5 times in a row. What is the probability that the coin will come up heads, again, on the 6th toss?
asked by Hanif on August 13, 2018 
maths
Suppose there are 10 coins laid out in front of you. All of the coins are fair (i.e. have an equal chance of heads or tails) except one, which flips to heads every time. You draw one coin at random and flip it 5 times. If each of the 5 flips results in
asked by sana on March 26, 2013 
math
Carolyn tested a coin to see if it was evenly weighted. She flipped the coin 100 times and came up with 42 heads and 58 tails. How does the relative frequency of tails to heads compare to the probability of tails in this experiment? A. The relative
asked by bubbie on June 8, 2013 
math
Find the probability of the following events in eleven tosses of a fair coin using binomial probability? a. Exactly 4 heads up b. at least 9 heads up
asked by Jessica on April 22, 2019 
math
Suppose you have an extremely unfair coin: the probability of a head is 1/5, and the probability of a tail is 4/5. If you toss the coin 40 times, how many heads do you expect to see? A. 8 B. 6 C. 5 D. 4
asked by michelle on April 12, 2016 
math
A student claims that if a fair coin is tossed and comes up heads 5 times in a row, then, according to the law of averages, the probability of tails on the next toss is greater than the probability of heads. What is your reply?
asked by crystal on April 20, 2010 
Math
What is the probability of obtaining exactly three heads in four flips of a coin, given that at least two are heads? (Enter the probability as a fraction.) I keep getting 2/3 but its wrong. Help!!
asked by Ashanti on August 20, 2014 
Statistics and Probability
We have k coins. The probability of Heads is the same for each coin and is the realized value q of a random variable Q that is uniformly distributed on [0,1]. We assume that conditioned on Q=q, all coin tosses are independent. Let Ti be the number of
asked by Anonymous on November 5, 2018 
Intro to Probability, please check my work.
A fair coin is flipped three times. You win $5 every time the outcome is heads. Let the random variable X represent the total number of dollars you win. (a) List the sample space. (b) Determine the probability function of X. ====================== Answer:
asked by Amelie on February 17, 2008 
Algebrad
A six sided number cube is rolled and a coin is flipped. What is e probability that the number on the cube is less than 4 and the coin lands on heads? I think the answer might be 1/3. Heads and tails is 1 and less than 4 is 3. I am not sure.
asked by Blake on May 22, 2016