A fair coin is tossed 7 times. (a) What is the probability of exactly 4 heads in the 7 tosses? (b) What is the probability of 2 or more heads? (c) What is the probability of at least one head? (d) What is the probability of at most 1 head?

Q: You toss a fair coin three times: What is the probability of three heads, HHHHHH? What is the…

A: You toss a fair coin three times:

Q: What is the probability of the event "tails shows on the coin and an even number on the die"?

A: A fair coin is flipped and it is noted whether heads or tails show  P(HEAD)= 0.5 P(TAIL) = 0.5 A…

Q: (a) What is the probability that a package is returned? (b) If someone buys 3 packages, what is the…

A:

Q: A fair coin is flipped 30 times.  What is the probability that the coin comes

A: n = 30 p = 0.5 = np = 30* 0.5 = 15  = sqrt(np(1 - p))     = sqrt(30 * 0.5 * 0.5)    = 2.7386

Q: Rolling three four-sided dice, what is the probability of totaling at least 9?   Is there a way to…

A: The dice have four sides then the outcomes are 1, 2, 3, & 4.  Three dice have rolled, so the…

Q: A card is drawn at random from a deck. (i) What is the probability that it is an ace or a king? (ii)…

A:

Q: Suppose a fair coin is tossed 7 times. (Enter your probabilities as fractions.) (a) What is the…

A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…

Q: Four girls and four boys stood randomly in a line. What is the probability that the boys stand…

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Q: What is the probability of getting a head when tossing a coin? A school has 820 male students and…

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Q: 1.  What is the probability of rolling a pair of dice and obtaining a total score of 10 or more? 2.…

A: 1. The sample space of the 36 possible outcomes for a pair of fair dice is,

Q: Select one card from a deck of well-shuffled cards. What is the probability we select a Diamond or a…

A: Deck consists of 52 cards. n(S)=52 Let D be event that card is diamond. n(D)=13 Let H be event that…

Q: . 3 A bouquet of 6 flowers is made up by randomly choosing between roses and carnations. What is the…

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Q: There are 6 bulbs in a house. Three bulbs are defective. If 2 bulbs are picked at random, what then…

A: Given, There are 6 bulbs in a house. Three bulbs are defective => 3 bulbs are good. If 2 bulbs…

Q: a. What is the probability that the student is in proper uniform? b. A female student is picked at…

A:

Q: bank is interested in studying the number of people who use the ATM located outside its office late…

A: Given that

Q: 2. The probability that a rifleman hitting the target is 40%. Suppose he fires 8 times, what is the…

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Q: If a coin tossed four times, then what is the probability of getting either at least two heads or at…

A:

Q: 9) Two dice are rolled simultaneously. What is The probability that The two scores are different?

A: When we roll two die simulataneosuly, we get the following sample space as S=…

Q: What is the probability of having 2 boys given at least 1 is a boy? (Bayes’ theorem)

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Q: A fair 20 sided die is tossed. What is the probability that the numbers 17 or 5 or 11 or 9 are…

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Q: A man starts a random walk at a lamp post. There is a pit of alligators 3 steps down the path. If he…

A: The number of total steps taken by man = 10 He has to take 7 steps forward and 3 steps backward and…

Q: manufacturing machine has a 9% defect rate. If 4 items are chosen at random, what is the…

A: p=0.09n=4

Q: 3. The weatherman reports that the probability of rain is 40%. What is probability that it will not…

A: 3. Given Data: P( rain)=0.4   To Find: P( no rain) P( no rain)=1-P( rain)                 =1-0.4…

Q: 322 chickens on a farm lay brown eggs and 326 chickens on the farm lay white eggs. If a chicken is…

A: The total number of outcomes is 322+326 =648. The number of favourable outcomes is 326.

Q: Ten pairs of twins are attending a special party organized for twins. At the party, two individuals…

A: Given: There 10 pairs of twins i.e. there are 20 people attending the party.

Q: Suppose a fair coin is tossed 5 times. (Enter your probabilities as fractions.) (a) What is the…

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Q: 4) An unfair coin, when tossed 7 times, has the same probability of obtaining 2 heads out of 7 as it…

A: Let us assumep=the probability that the coin lands on headn=sample size=7 X=the number of headsX…

Q: 6 A bag contains 2 red marbles and 3 blue marbles. If one marble is drawn at random, what is the…

A: Given data: 2 red marbles 3 blue marbles

Q: A fair coin is tossed 8 times. i). What is the probability that the eighth toss results in a head…

A: Following are the explanation of the question.

Q: (a) What is the probability that all 5 missiles will fire? (b) What is the probability that at most…

A: n = 15 The probability of defective missiles is  p = 4/15 = 0.2667

Q: a. A set of playing cards has King of hearts and Queen of spades missing. In order to play mentioned…

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Q: The probability of winning the grand prize at a particular carnival game is 0.005. Michele wins the…

A: Probability measures the chance occurrence of an event out of all possible outcomes.

Q: What is probability of getting a total of 6 or 10 when a pair of dice is tossed?

A: I solved exactly first question because of bartleby policy if you want more please uplode…

Q: n urn contains 3 red balls, 4 green balls and 1 yellow balls. An experiment consists of picking 3…

A: Given: Number of red balls = 3 Number of green balls = 4 Number of yellow balls = 1 Total number of…

Q: A biased coin comes up heads 60% of the time. The coin is tossed 4 times. a. What is the probability…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: a) What is the probability that the jury will have 6 men and 6 women? b) What is the probability…

A: Here use hypergeometric distribution

Q: Six cards are selected from a fair deck. What is the probability that they contain exactly 4 red

A: Solution: There are total 52 cards  from a fair deck. 26 cards red and 26  black

Q: In a tank containing 10 fishes, there are three yellow and seven black fishes. We select three…

A: Hypergeometric distribution is given by

Q: An electric clock is stopped by a power failure. What is the probability that the second hand is…

A: Given  An electric clock is stopped by a power failure. To find :  The Probability that the second…

Q: What is the probability of getting a tail in the first draw and a head in the second draw if a coin…

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Q: A fair coin is tossed 9 times. (A) What is the probability of tossing a tail on the 9th toss, given…

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Q: A Coin is tossed 12 times. Then, a. What is the probability at most four of the tosses are heads? b.…

A: GivenA coin is tossed 12 timessample size(n)=12chance of getting head(p)=12=0.5    (the coin has two…

Q: fair 2-sided coin is tossed 3 times. What is the probability that the coin lands on heads at most…

A: Given that : fair 2-sided coin is tossed 3 times Total outcomes (N) = 23  = 8  X = number of heads…

Q: Four girls and four boys sat randomly at the round table. What is the probability that the girls sit…

A: We have to find given probability that the girls sit together.

Q: A bag of the same size small balls contains six Blue Balls 5 red balls, 5 yellow balls and 4 Green…

A: Given that A bag of the same size small balls contains six Blue Balls 5 red balls, 5 yellow balls…

Q: 20) A gambler places a bet on a horse race. To win, she must pick the top three finishers in order.…

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Q: 3) A fair coin is flipped 3 times. a) What is the probability that the coin flips heads 3 times in a…

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Q: 5. On average, there are 2 car thefts every 10 square kilometers during the course of a month in…

A: 5. a. The Poisson probability distribution of random variable X is, PX=x=e-λλxx!;         x=0,1,2,……

Q: d) A card is drawn from a standard deck of cards. What is the probability of drawing Queen OR Spade?…

A:

Q: the experiment of rolling two unloaded dice. What is the probability that the sum of the two dice is…

A: We have given that  Two dice rolling the sample space  S = 62 = 36