Twelvejurors are randomly selected from a population of 4 million residents. Of these 4 million​ residents, it is known that 47​% are of a minority race. Of the 12 jurors​ selected, 2 are minorities. (a) What proportion of the jury described is from a minority​ race? ​(b) If 12 jurors are randomly selected from a population where 47% are minorities, what is the probability that 2 or fewer jurors will be​ minorities? ​(c) What might the lawyer of a defendant from this minority race​ argue?

Q: A psychology class consists of 36 males and 48 females. If the professor selects names from the…

A: Given, A psychology class consist of 36 males and 48 females. and professor select names from the…

Q: 40% of the managers in an international company have traveled abroad, 50% of them can speak foreign…

A: Let event T:Manager travelled abroad event F:Manager can speak foreign language. PT=0.4 therefore…

Q: Suppose that a pond contains 50 fish of which 30 are redfish. If we catch 10  with replacement,…

A: 30 of 50 fishes in the pond is redfish. So, probabiility of getting a redfish = 30/50 = 0.6. Hence…

Q: 1. Suppose that 31% of adults have at least one tattoo. If you sample 90 rand adults, what is the…

A: Z = p^-pp(1-p)n~N(0,1)

Q: In a certain voting precinct, 81% of voters are registered democrats. what is the probability that,…

A:

Q: A psychology class consists of 28 males and 52 females. if the professor selectes names from the…

A: (a) Obtain the probability that the first student selected will be a female. The probability that…

Q: A school has 12 good runners of which 5 are girls. If four are chosen at random to represent the…

A: Given that a school has 12 good runners of which 5 are girls.  So (12-5)=7 are boys   We can select…

Q: A public health researcher examines the medical records of a group of 837 men who died in 1998 and…

A: Given data:     The given number of men in the group is: n(M)=837. The number of men who died due to…

Q: 1. Suppose that 31% of adults have at least one tattoo. If you sample 90 random adults, what is the…

A: From the given information the probability that adult have tattoos is .31. Samples are taken random…

Q: A western city has 20 police officers eligible for promotion. Eleven of the 20 are men. Suppose only…

A: Q14. In this situation the hyper geometric distribution is appropriate to use. The probability…

Q: A box contains 8 bulbs, of which 5 are good and 3 are defective. If 3 bulbs are randomly taken from…

A: Given that  Total bulbs=8 Good bulbs=5 Defective bulbs=3 3 bulbs are chosen at random

Q: A university bookstore claims that 50% of its customers are satisfied with the service and their…

A: The probability that in a random sample of 600 customers, less than 45% are satisfied is, Thus, the…

Q: A group of students consisting of 20 males and 20 females were selected to participate in a research…

A: Solution: From the given information, there are 20 males and 20 females. Total number of students is…

Q: Of 15 persons who have contracted a disease, 10 have completely recovered. Suppose that 5 persons…

A: Let n be the randomly selected persons = 5. Let M be no. of persons have completely recovered = 10.…

Q: In a class of 2525 students, 3553​ of the class are boys, 2552​ of the class have ​blonde hair, and…

A: It is given that 3/5 of class are boys, 2/5 of class have blonde hair, and 1/5 of the class are boys…

Q: A corporation receives 120 applications for positions from recent college graduates in business.…

A: Given: p=0.4 n=120

Q: In a town of 5000 people, 1000 are over 60 years old and 2000 are female. It is known that 40% of…

A: Given: Total People in town=5000Number of people over 60=1000Number of females=2000Number of female…

Q: about 38% of the population have blood type-O positive. If you randomly choose 4 people, what is the…

A: It is given that p = 0.38 and n = 4. The probability mass function of the binomial distribution is…

Q: At a local CVS pharmacy, 85% of the customers have a CVS card. In a random sample of 5 customers,…

A: The provided information is: Probability of a Customer would have CVS card (p)=0.85 Consider that X…

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

A: Introduction: The total sample size is n = 7. Denote x1, x2, x3, and x4 as the number of sampled…

Q: A box contains 8 batteries, 3 of which are defective. What is the probability that, if a sample of 5…

A: Given that a box contains 8 batteries, 3 of which are defective.  Sample size = 5

Q: A lie detector is known to be 70% reliable when the person is quilty and 95% reliable when the…

A: The machine is reliable when person is guilty is 70% The machine is reliable when person is not…

Q: An after-school club sonsists of 10 juniors and 12 seniors. If 2 students are chosen at random to…

A:

Q: A committee of 8 members is to be formed from a group of 8 men and 8 women. If the choice of…

A: Number of men=8 Number of women=8 The objective is to form a group of 8 members with half of these…

Q: At a certain university, 4% of men are over 6 feet tall and 1% of women are over 6 feet tall. The…

A: Let the sequence Ai of mutually exclusive and exhaustive event in a sample space S such that…

Q: A manufacturer obtains​ clock-radios from three different​ subcontractors:10%from​ A, 20%from​ B,…

A: Let us denote X= defective  Given that P(A)= 10%=0.10  P(B)= 20%= 0.20  P(C)= 70%=0.70  P(X|A)= 5%=…

Q: Suppose that 45% of all babies born in particular hospitals are girls. If 7 babies born in the…

A: Givenn=7p=0.45x=no.of baby girls

Q: A committee of 8 members is to be formed from a group of 8 men and 8 women. If the choice of…

A: Here , we have to form a committee of 8 members out of 16 people, including 8 men and 8 women . we…

Q: 56% of Americans are active voters. If a sample of 40 random Americans is selected, what is the…

A:

Q: 1. In a group of 50 basketball fans, 35 prefer San Miguel. If a random sample of 20 is selected from…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A box contains 20​ chocolates, but only two of them are the dark chocolate that somebody likes. When…

A: Theoretical Probability:Probability of an event is the number of outcomes favourable to the event,…

Q: A committee of 4 people is to be randomly selected from a group of 9 people, including Pedro.  The…

A: It is given that, There is a group of 9 people including Pedro.  We have to form a committee of 4…

Q: It is a well-established fact that 40% of people are scared of squirrels. - If we take a SRS of 250…

A: Checking condition to use normal distribution: np=250×0.40=100>10…

Q: ertain blood test is 99.5% effective at detecting Foreign Bloodborne Pathogens (such as the…

A: Lets denote p be the probability  that a randomly selected person who take certain test  correctly…

Q: a marble is selected at random from a jar containing 6 red marbles, 5 yellow marbles, and 4 green…

A: Given,  containing 6 red marbles, 5 yellow marbles, and 4 green marbles Probability= no. Of…

Q: box containing a dozen of capacitors contains 4 that are defective. If 3 capacitors are selected at…

A: # Given; nonof capacitors =12  nonof defective=4  to find probability of atleast one out of 3…

Q: In Electrical Eng. Dept., there are 1000 students, out of which 430 girls It is known that out of…

A:

Q: A box contains 24 light bulbs of which four are defective. If one person selects 10 bulbs from the…

A: According to the provided information, a box contains 24 bulbs out of which four are defective. One…

Q: A class consists of 28 males and 52 females . If the professor selects names from the class list…

A: Given information- We have given that a class consists of 28 males and 52 females. Total students =…

Q: Suppose that 50% of American adults have attended a college for at least one semester. If we select…

A: Given data, p=50%=0.50 n=400 P(X>300)=?

Q: If you are randomly sampling one at a time with replacement from a bag that contains eight blue…

A: (a) Total no. of marbles = 8+7+5 = 20 P(drawing a blue marble) =820 P(drawing a red marble) = 720…

Q: In Electrical Eng. Dept., there are 1000 students, out of which 430 girls. It is known that out of…

A:

Q: A manufacturer of laptops reports that among a shipment of 5000 sent to a local distributor, 1000…

A: Given: Number of laptop purchased is, n=10. Total number of shipment of laptop is, N=5000. Number…

Q: In a large population, 65 % of the people have been vaccinated. If 4 people are randomly selected,…

A: Given, Probability that the people have been vaccinated (p)=0.65 Sample size (n)=4 Lex x be the…

Q: Suppose that at a large university 30% of students are involved in intramural sports. If we randomly…

A: Obtain the probability that fewer than 5 of these students are involved in intramural sports. The…

Q: Suppose that at a large university 30% of students are involved in intramural sports. If we randomly…

A: Obtain the probability that fewer than 6 of these students are involved in intramural sports. The…

Q: A random sample of 15 persons is taken from a population in which 42% are Muslims. What is the…

A: It is given that a random sample of 15 persons is taken from a population in which 42% are Muslims.

Q: A finite lot of 20 watches is 20% defective, what is the probability that in a sample of 3 will…

A:

Q: 4/ A public health researcher examines the medical records of a group of 837 men who died in 1998…

A: We first make a table using the given data   died from heart disease did not die from heart…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.