If a list of 20 individuals who volunteered to supply blood, when it is needed for transfusion, has 15 individuals of type B blood and 3 individuals are selected random from the list, what is the probability  that A)all three will be type B; b) 2 will be of type B and 1 will not; c)at least 1 will be of type B?

Q: If 20% of the bolts produced by a machine are defective, determine the probability that out of 6…

A: Given: Sample size, n=6 Probability of defective bolt, p=0.20

Q: Suppose that 60% of all adults regularly consume coffee, 50% regularly consume carbonated soda, and…

A:

Q: Suppose an urn contains 12 balls, with 7 red and 5 black. If you randomly select 4 balls without…

A: Introduction: According to the permutation rule, if r distinct items are to be chosen from n items…

Q: Three students from a 15 student class will be selected to attend a meeting. Six of the students are…

A: Total number of students = 15 Number of females = 6 Probability of choosing a female is: p=615=0.4…

Q: In a country, 80% of the graduates are citizens,65% of the citizens graduates are employed while…

A:

Q: In a sample of 50 people, 19 had type O blood, 22 had a type A blood, 7 had type B blood, and 2 had…

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Q: If you roll a fair six sided die nine times, what is the probability that at least two of the rolls…

A: The probability of getting three=16 The probability of not getting three=56 The probability that…

Q: Suppose that 58% of customers at McDonald's order fries, and that 37% of customers are women. Also,…

A: Given information Probability of ordering fries P (order fries) = 0.58 Probability of women ordering…

Q: In the senior year of high school graduating class of 100 students 42 studied mathematics, 68…

A: Given: Total number of students = 100 Students studied Mathematics  'M' = 42 Students studied…

Q: Suppose that 58% of customers at McDonald's order fries, and that 37% of customers are women. Also,…

A: As per answering guidelines,  we can answer only 3 subparts of a question and the rest can be…

Q: At a certain college, 53% of the students are female, and 19% of the students major in civil…

A: Introduction: It is given that 53% of the students are female. Thus, it can be assumed that the…

Q: In a country, 70% of the graduates are citizens,60% of the citizens graduates are employed while…

A:

Q: Suppose that 30% of all voters prefer Candidate A. If 8 people are chosen at random for a poll,…

A: We have given that  n=8 , p=30%=0.30 , q=1-0.30=0.70 X~Binomial(n=8 , p=0.30)

Q: From a box containing six black plates, eight white plates and ten blue plates, one plate is drawn…

A: Solution

Q: a boy chosen at random played exactly one sport b. a boy chosen at random played baseball, given…

A: Given : Total boys are 250 , 230 played baseball , 140 played soccer , 50 played both. Our aim is to…

Q: A bag of 33 tulip bulbs contains 12 red tulip bulbs, 12 yellow tulip bulbs, and 9 purple bulbs.…

A:

Q: 8. In a recent poll, 23% of the respondents supported candidates A, 19% supported candidate B, 13%…

A: (8) Given: There are 4 possible outcomes: Candidate, Candidate B, Candidate C, Undecided. Number of…

Q: In a bolt factory, machines A, B and C manufacture 25%, 35% and 40% of total outputs, respectively.…

A: Solution

Q: According to a study, one-fifth of all rough diamonds produced in one region are blood diamonds.…

A:

Q: Consider a collection of envelopes consisting of 1 red envelope,3 blue envelopes,3 green envelopes,…

A: Given that a collection of envelopes consisting of 1 red envelope,3 blue envelopes,3 green…

Q: One-sixth of the male freshmen entering a large state school are out-of-state students. If the…

A:

Q: A manufacturer of automobile tires report that among a shipment of 5000 sent to a local distributor,…

A: We can pick 3 blemished tires from 1000 blemished tires in 1000C3 ways. We can select (10-3)=7…

Q: If 25% of the bulbs produced by ABC Lighting Company are defective, determine the probability that…

A:

Q: An urn has 21 balls that are identical except that 8 are white, 8 are red, and 5 are blue. What is…

A: Given that ; An urn has 21 balls.  Total balls (n) = 21 White balls (w) = 8 Red balls (R) = 8 Blue…

Q: From a bag containing 6 white balls, 3 black balls, and 13 red balls, two balls are drawn at random.…

A: To find: The probability that both the ball being red. Given: There are 6 white balls, 3 black…

Q: Assume that the box contains 10 balls: 2 red, 2 green, and 6 blue. 2 balls are drawn at random, one…

A:

Q: 64% of all students at a college still need to take another math class. If 5 students are randomly…

A: Given Information: 64% of all students at a college still need to take another math class. i.e.,…

Q: Suppose a store accepts VISA and Mastercard only. If 40% of customers carry a VISA card, 70% carry a…

A: If A and B denotes two events, then the probability that both events happen simultaneously, can be…

Q: From a pack of 52 playing cards, three cards are drawn one after the other without replacement. What…

A: Total number of cards = 52 Number of Ace cards = 4 Number of King cards = 4 Number of Jack cards = 4

Q: A traffic control engineer reports that. 75% of the vehicles passing through a checkpoint are from…

A: Given that  75% of the vehicles passing through a check point are from within the state. So the…

Q: Nine new employees, two of whom are married to each other, are to be assigned nine desks that are…

A: There are total 9 employees. We can arrange them in 1 row in 9!=362880 ways If the couple have…

Q: In a country, 75% of the graduates are citizens,60% of the citizens graduates are employed while…

A: Given , 75 percent of the graduates are citizens ... Among them 60 percent of citizens are employed…

Q: Box A contains 8 items of which 3 are defective, and box B contains 5 items of which 2 are…

A: Solution To find the probability we will use conditional probability formula and total probability…

Q: In a country, 90% of the graduates are citizens, 70% of the citizens graduates are employed while…

A: in a country, 90% of the graduates are citizens, 70% of the citizens graduates are employed while…

Q: Of the cartons produced by a​ company, 7​% have a​ puncture, 10​% have a smashed​ corner, and 1.1​%…

A:

Q: From a sack of fruit containing 10 oranges, 4 apples, and 6 bananas, a random sample of 8 pieces of…

A:

Q: An urn has 10 balls that are identical except that 3 are white and 7 are red. A sample of 4 is…

A:

Q: Assume that the committee consists of 8 Republicans and 7 Democrats. A subcommittee of 6 is randomly…

A: Obtain the probability that the new subcommittee will contain at least 2 Democrats. The probability…

Q: Suppose that 20% of the adult population in Palestine smoke cigarettes only, 15% smoke Argeeleh…

A: C be the event of smoking cigarettes only. P(C)=0.20 A be the event of smoking Argeeleh only.…

Q: In a country, 80% of the graduates are citizens,65% of the citizens graduates are employed while…

A: Solution: Probability P(E)=( Number of favourable outcomes n(E)) ÷ ( Number of total possible…

Q: 60% of the used cars in local market of Suhar are from local agencies, and the remainders are…

A: As given: 60% of the used cars in local market of Suhar are from local agencies So, remaining 40%…

Q: In Kwangya village, 47% of the residents own a specialized weapon to fight the Black Mamba, a…

A:

Q: An urn has 9 balls that are identical except that 3 are white and 6 are red. A sample of 4 is…

A: We can pick 2 white balls from 3 white balls in 3C2 =3 ways  We can pick 2 red balls from 6 red…

Q: Assume that a fair six-sided die is rolled 14 times, and the roll is called a success if the result…

A: first determine the probability of successes and failures.

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…

Q: According to Nielsen Media Research, 30% of televisions are tuned to NFL Monday Night Football when…

A: The probability that form 5 to 10 (inclusive) out of 15 television are tuned to NFL Monday Night…

Q: Of the cartons produced by a​ company, 9​% have a​ puncture, 7​% have a smashed​ corner, and 0.5​%…

A: The general formula of probability is given by, P(A or B)=P(A)+P(B)-P(A and B) Given: 9​% have a​…

Q: In a group of 36 university students, there are nine who are fluent in English, four in French and…

A: Obtain the probability that he is fluent in French and known to be fluent in English.   The…