In a family with 7​children, excluding multiple​ births, what is the probability of having7 ​girls? Assume that a girl is as likely as a boy at each birth.

Q: Suppose Emerson loses 39% of all ping-pong games. (a) What is the probability that Emerson loses two…

A:

Q: If 8 different books are arranged at random on a shelf, what is the probability that a certain pair…

A: The number of books are 8.

Q: 2. The probability that a randomly selected student in your class watched something on Netflix at…

A:

Q: is the probability that all books within the same subject will be adjacent?

A: here total books  6+5+4+3 = 18  here use total arrangements

Q: In a shooting game, the probability for Ali to hit a target is , and the probability for Ahmad to…

A: Answer - The probability for Ali to hit a target is   P(A) =  1/2                The probability for…

Q: ten?What is the probability that the number of spades in your hand and in your partner’s hand totals…

A: Here consider person and his partner consider as single entity who got 26 cards as here Required…

Q: For people are sitting around a table with two brothers.  How many different positions can they…

A: Given data four people are sitting around a table with two brothers

Q: In a group of 15 people 5 can speak german. If 3 people are selected at random to be sent on a…

A: Total number of persons = 15 Number of persons who speak German = 5 Sample size = 3

Q: In a family with 4 children, excluding multiple births, what is the probability of having 2 girls…

A: Probability is ratio of favourable chances to total chances. Total chances = S Favourable chances =…

Q: The probability that a cask contains more than 261 liters of whiskey is If there are 9 casks of…

A: Let X denote the volum of whiskey in a cask. Given that X follows Uniform(a = 258.5, b = 261.5).…

Q: a. If 50 persons were tested in a specific testing center, what is the probability of getting 10…

A: Here  P = probability of tested positive  = 0.60 q= 1-p = 0.40

Q: If the probability of a student taking a strength training gym class is 0.90, the probability of…

A: Additive rule of probability , P( A or B ) = P(A) + P(B) - P( A and B )

Q: What is the probability of N people in a room to have at least four people having the same birthday?

A: The probability of at least N people having same birthday can be calculated as:…

Q: a) What is the probability that exactly two patients will arrive in a given hour? b) What is the…

A:

Q: A poll is given, showing 60% are in favor of a new building project. If 7 people are chosen at…

A: A poll shows that 60% are in favor of a new building project. Seven people are chosen at random.…

Q: weather forecaster knows from experience that the daily probability of rain is 0.3 during March.…

A:

Q: In a group of 2500 persons, are female, 600 are vegetarian, and are female and vegetarian. What is…

A:

Q: A softball pitcher has a 0.431 probability of throwing a strike for each pitch. If the softball…

A: Let the R.V X denotes the number of throws and it follows the binomial distribution with parameters…

Q: If the probability of a certain event is 24/61,what is the probability of the event not happening?

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Q: (a) What is the probability that of 10 laborers testing positive, 2 are cocaine users, 5 marijuana…

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Q: What is the probability that a employee: a) Works at iver ? Works at Swindon or is

A: Probability is the ratio of the occurrence of any event.

Q: Eight out of ten motorcyclists wear safety helmets in states that do not require them. If two…

A: Total number of motorcyclists  = 10 No.of motorcyclists wear safety helmets = 8 The probability that…

Q: forcater knows from historical data that the daily probability of rain is 0.3 during april. what is…

A: It is given that the, A weather forecaster knows from historical data that the daily probability of…

Q: shows that 95% of submachine gun buyers purchase a box of bullets. What is the probability that a…

A: Here Given P(P)=Probability Personnel buy Pistol=0.85 P(G)=Probability that Personnel  buy  Gun=0.15…

Q: a couple plans to have five children, what is the probability that they will have at least one girl?…

A: From the given information we find the probability.

Q: An urn contains 5 yellow marbles, and 4 green marbles. If one marble is selected. Determine the…

A: Given,no.of yellow marbles=5no.of green marbles=4total no.of marbles=9

Q: A family has four children. What is the probability that exactly 3 of the children are girls? In…

A:

Q: 10. In a family with 77 children, excluding multiple births, what is the probability of having…

A: The probability of having exactly 2 girls is obtained below: The probability formula is given below:…

Q: Consider a family with three children. Given that at least one of the children is a boy, what is the…

A: Given,a family has 3 childrenthe probability of having a boy is 0.5and  the gender of the second…

Q: Suppose that the probability that a child living in an urban area in the US is obese is 20%. A…

A: Given:Number of children living in an urban area (n)=10Probability(P)=0.20Explanation:Let’s x is…

Q: Suppose that a single card is selected from a standard​ 52-card deck. What is the probability that…

A: Solution: Suppose single card is selected from standard 52 card deck . We hae to calculate…

Q: ©What is the probability that five children produced by the same couple will consist of (a) three…

A: Binomial Distribution: If we have n trials each having two outcomes, say Success and Failure, trials…

Q: n a family with 3 children, excluding multiple births, what is the probability of having exactly 1…

A: In this case, we need to obtain the probability of having exactly 1 girl. Given: A family of three…

Q: A fair coin is tossed and a balanced die is rolled simultaneously. What is the probability of…

A: Answer: Using the given data,

Q: What is the probability of rolling a number less than 4 or an odd # on a single di?

A: We have to calculate the probability of rolling a number less than 4 or an odd on a single die

Q: A 13-hand card is dealt from a well shuffled deck of 52 cards. What is the probability that the hand…

A: Given A 13-hand card is dealt from a well shuffled deck of 52 cards.

Q: If 1 day of the week is chosen at random to be Mary's day to mow the lawn, what is the probability…

A:

Q: (a) What is the probability that exactly 3 of 5 light users are HIV positive? (b) What is the…

A: Here , To find required probabilities ,  one of the method , Binomial probability law can be used.…

Q: Of one card is drawn from a standard deck of cards, what is the probability that the card will be a…

A:

Q: Let two cards be dealt​ successively, without​ replacement, from a standard​ 52-card deck. Find the…

A: Multiplication Rule:Multiplication rule for two dependent events A, and B is given by:

Q: a. What is the probability that there are exactly 5 students who fail in 1 sem? o. What is the…

A:

Q: In a family with 4 children, excluding multiple births, what is the probability of having exactly 2…

A: Given: n = 4 x = 2 p = 0.5 q = 0.5 Formula Used: Binomial distribution: If a random variable X…

Q: If The probability of rain falling on any day in November is 20% find the probability of: A: There…

A:

Q: In a secondary school, 58% of students who is studying in an art course have purchased a drawing…

A: We have to find given probability.

Q: If the probability is .51 that a candidate wins the election, what is the probablilty that he loses?

A: Farmula used P(E)+P(Ec)=1  Ec is the complement of E

Q: a. What is the probability that 2 of the chosen balls are red? b. If it is known that the 2nd ball…

A:

Q: is the probability that customers B and E arrive before other customers?

A: Here 7 different customers A,B,C,D,E,F and G Here use total arrangement concept

Q: Of the inhabitants of a certain native village in Africa, 80% are known to have a particular eye…

A: The probability that a person to have a particular eye disorder is p=0.8 The number of people n=12…