The mailing list of an agency that markets scuba-diving trips to the Florida Keys contains 78% males and 22% females. The calls 29 people chosen at random from its list. (0) What is the probability that 18 of the 29 people are men? (b) What is the probability that the first woman is reached on the 7th cal? Submit Answer

Q: Fifty-eight percent of American adults eat at a table-service restaurant at least once a week.…

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Q: At a certain college, 49% of the students are female, and 19% of the students major in civil…

A: Given that Female =49% =0.49 Civil engineer = 19% =0.19 Female and Civil engineer ( both ) = 12%…

Q: On a certain day, a cheese packaging facility packaged 560 units of mozzarella cheese. Some  these…

A: Solution:   Minor flaw No minor flaw   Major flaw 15 37 52 No major flaw 67 441 508 Total…

Q: Suppose you select a token at random from the dish above. What is the probability that the token is…

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Q: In 2014, approximately 13% of nonelderly Americans adults had no health insurance. Suppose that a…

A: Given: Proportion of American adults having no health insurance, p=0.13 Sample size, n=400

Q: 10. At John F. Kennedy Elementary School, 81% of students buy their lunch. In a randomly selected…

A: We have given that p = 0.81 n = 22 X ~Binomial(n, p) X ~ Binomial (22, 0.81)The PMF of the Binomial…

Q: A campus program evenly enrolls undergraduate and graduate students. If a random sample of four…

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Q: State Farm Insurance studies show that in Colorado, 60% of the auto insurance claims submitted for…

A: (b) The random variable X is defined as the number of claims are made by males under age 25 which…

Q: Fifty-NINE percent of American adults eat at a table-service restaurant at least once a week.…

A: GivenNo.of American adults eat at a table service restuarant =0.59

Q: In a recent survey of a random sample of 437 California residents, 129 said they visited a state…

A: We want to find out the correct answer for given question

Q: A survey of 200 college graduates who have been working for at least three years found that 65 owned…

A: We have to use union and intersection of set to find the various probabilities.

Q: Past records of a factory show that 4% of the candles produced are defective. What is the…

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Q: At a car manufacturing plant, 10% of cars have some sort of defect when they come off the line. If…

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Q: The air conditioner of 2 out of 10 cars in a car dealership is faulty. For a company that buys 4 of…

A: Giventhe air conditionerof 2 out of 10 carsis…

Q: a man is dealt with four diamond cards from an ordinary deck of 52 cards. If he is given five more…

A: A standard deck of cards has four suites: hearts, clubs, spades, diamonds Each suite has 13 cards:…

Q: A customer from Cavallaro's Fruit Stand picks a sample of 4 oranges at random from a crate…

A: Let us denote X=the number of rotten orangesWe have to find P(X≥1)=1-P(X=0)Given that there are 80…

Q: In the United States, 75 percent of adults wear glasses or contact lenses. A random sample of 10…

A: A random variable X, is said to follow binomial distribution if the probability mass function of X…

Q: Migraine medication was administered to patients in that 2% experienced weight gain as a side…

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Q: A hospital finds that 25% of its accounts are at least 1 month in arrears. A random sample of 450…

A: Let us denote: X=the number of accounts that were at least 1 month in arrearsGiven that n=sample…

Q: 47 percent of students who made a resolution of passing college with high GPA achieved their…

A: Given that, n =155, p =0.47 The values of mean and standard deviation are,

Q: A town recently dismissed 8employees in order to meet their new budget reductions. The town had 6…

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Q: Naval intelligence reports that 6 enemy vessels in a fleet of 18 are carrying nuclear weapons. If 8…

A: Hyper geometric distribution: In a population with N objects, M be the number of success event. A…

Q: In a certain congressional district, it is known that 20% of the registered voters classify…

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Q: c. A bag contains 20 tennis balls, of which four are defective. If two balls are selected at random…

A: c.   Probability =Favorable caseTotal casesFavourable case : Number of chance to get both defective…

Q: What is the probability of hitting a target if, in the long run, 6 out of every 35 attempts actually…

A: It is given that  Favourable cases = 6 Total outcomes = 35

Q: It has been found that 1 out of every 10 visitors to a museum buys something from the gift shop. If…

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Q: On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on…

A: Given,             X      25    50    75   100  Total   P(x)    0.27   0.44   0.25   0.08…

Q: In a large corporation, 55% of the employees are male. A random sample of six employees is selected.…

A: The random variable X follows binomial distribution. The sample size is 6. The probability is 0.55.

Q: f seven fair coins are simultaneously tossed in the air, what is the probability

A: When a coin is tossed Probability of getting heads is =0.5 Probability of getting tails is =0.5 If 7…

Q: A town recently dismissed 6 employees in order to meet their new budget reductions. The town had 6…

A: Given data: The numbers of employees dismissed are d=6. The numbers of employees over 50 years are…

Q: In an experiment involving smoke detectors, an alarm was set off at a college dormitory at 3 a.m.…

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Q: c. What is the probability that in a random sample of 2, at least one has been abroad?

A: (C) Let X be the random variable from binomial distribution with probability of people have been…

Q: A survey of 200 college graduates who have been working for at least three years found that 85 owned…

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Q: A flu test shows that about 31% of all patients visited the hospital. Suppose that 90 patients…

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Q: A manufacturer of aluminum sheets, finds that on the average, 12.5% of his sheets are rejected…

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

Q: - An American Society of Investors survey found 30% of individual investors have used a discount…

A: 13 Given that 30% of individual investors have used a discount broker. The sample size is 9. Let us…

Q: A key shop advertises that the keys made there have a P = 0.85 of working effectively. If you bought…

A: Let "X" be the keys that would work effectively.

Q: The grades of a freshman college class, obtained after the first year of college, were analyzed.…

A: Percentage of students In top quarter is 70%. College class had graduated in the upper 10% of their…

Q: A sample of automobile dealerships found that 19 % of automobiles sold are silver. If two cars are…

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Q: A survey of 200 college graduates who have been working for at least three years found that 65 owned…

A: If there are n mutually exclusive, exhaustive and equally likely outcomes of a random experiment and…

Q: A manufacturer of bicycles produces 80 per cent of its output in its New York factory and the rest…

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Q: In a summer camp, 48% of the children are enrolled in swimming and 40% in tennis. One-third of the…

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Q: At a certain junior high school, two-thirds of the studentshave at least one tooth cavity. A dental…

A: Given: At a certain junior high school, two-thirds of the students have at least one tooth cavity.…

Q: In a marketing research survey, people are interviewed about product usage. One of the questions is…

A: Given: Probability of brand A, P(A)=14%P(A)=0.14 Probability of brand B, P(B)=9%P(B)=0.09 The…

Q: In general, after a group makes a reservation at a restaurant, they do not show up 20% of the time.…

A: Multiplication rule for independent events:If two events A and B are independent then the…

Q: A coin is tossed eight times. What is the probability that the outcome will be eight heads, given…

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Q: (b) What proportion of the children were 35 months or older, but less than 45 months of age when…

A: Rearrange the data set and create a frequency table from the above data given.

Q: 2a. What is the probability a salesperson selected at random will have a fair potential for…

A: Probability: The formula for probability of an event E is as follows: P(E) = (number of favorable…

Q: Within the general population in the 21st century, the chances of having twins are about 3 in 100…

A: Given Information: Let A be the event of getting a couple with twin baby. Let B be the event getting…

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.