al clients every day. The probability that you make a sale is 30% on any one phone call. Use this information to complete the following questions. Q1 Q2 Q3 Question 2 Is the selection of 25 phone calls a binomial experiment? 2 What is the mean? 2 What is the variance? Answer

Q: Do you know the mutiple choice?

A: a)P(X=5)=0b)P(X=0)=0.696c)P(X≥1)=0.304

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A: Suppose you draw two cards from a well-shuffled card deck without replacement. Let B be the event…

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Q: Seed are often treated with fungicides to protect them in poor draining, wet environments. A…

A: Total number of seeds=105=treated seeds5=untreated seeds

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A: 60% of customers are reputed to prefer a particular brand A of toothpaste. That is:

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A: There are 20 Corvette headlight bulbs including 4 that are defective.We selected 4 of the 20…

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A: we have given that circular target board with radius 10 inches and it is divided into 10 concentric…

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A: "Since you have posted a question with multiple subparts we will provide solutions only to the first…

Q: ind the 95% confidence interval of the true mean of the noise levels in the operating rooms.

A: It is given that Sample mean = 42Sample std. deviation = 11.4Sample size = 7

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A:

Q: We have the following information about the random variables X and Y: μx= 4 `, My = 5 Cov(X, Y) = στ…

A: From the provided information,

Q: Giving a test to a group of students, the grades and gender are summarized below A 15 13 Total 28 12…

A: Here the given table is :-ABCTotalMale1582043Female1341128Total28123171Using formula,

Q: The random variables X and Y have joint density function f(x, y) 21.2x - 0.8y, 0≤ x ≤ 1, 0≤ y ≤ 1. =…

A:

Q: A truck driver is waiting to join the traffic on the service road of a highway. The truck driver…

A: The given problem describes the vehicles arriving at the service road as a Poisson process with an…

Q: Suppose that scores on an exam are normally distributed with mean 80 and standard deviation 5, and…

A: It is given that scores on an exam are normally distributed with a mean of 80 and a standard…

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A: Note: Since you have posted a question with multiple sub-parts, we will solve first three subparts…

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Q: Consider the random variable X with probability function given in the table below. f(x) 0 0.1631 1…

A: xf(x)00.163110.065720.190930.307340.2731

Q: 15. Based on data from a USA Today Snapshot, 72% of adules have security concerns about online…

A: "Since you have posted a question with multiple subparts we will provide solutions only to the first…

Q: Continuous random variables X and Y have joint density function f(x, y) = 0 ≤ y ≤ 1. Calculate E[X]…

A: f(x,y)=127×(x2+xy); 0≤x≤1, 0≤y≤1

Q: you cant do on your own skip it, i need correct. The failure in 1 year for a memory card is 14 %.…

A: X be the number of good memory card.p be the probability of good memory card.n = 3, q = 14% = 0.14,…

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A: a) The betting odds for Scottie Scheffler are 13-2. In terms of probability, this means 2 "wins" out…

Q: A certain swimming pool has a large population of people who swim for a distance that follows a…

A: Sample size(n)=36mean()=250Standard deviation()=30

Q: 7. What does the term "sampling error" indicate? 8. When testing th

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

Q: Takeout Food A magazine article reported that 15% of adults buy takeout food every day. A fast-food…

A: The random variable is buying takeout food.We have to test whether 15% of adults buy takeout food…

Q: The joint distribution of (X,Y) is P(X = n, Y = m) -m (pλ) (q)n-n m! (n-m)! e- Find the pmf of Z =…

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A: A repair job can be either late or on time.A repair job can be either satisfactory or…

Q: You toss independently a fair coin and you count the number of tosses until the first tail appears.…

A: A fair coin : P(tail) = 1/2 Fair coin tossed independently until first tail appears , If coin tossed…

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A: Here the given information is:-Suppose that independent trials, each of which is equally likely to…

Q: For a certain river, suppose the drought length Y is the number of consecutive time intervals in…

A: From the given information,An article Purposes a geometric distribution with  P = 0.378We have to…

Q: A bag of MEM's has 8 red, 7 green, 2 blue, and 4 yellow M&M's. What is the probability of randomly…

A:

Q: Selecting Marbles A bag contains 8 red marbles, 5 white marbles, and 7 blue marbles. Randomly choose…

A: Total marbles=8+5+7=20Red marbles=8, White marbles=5, Blue marbles=7

Q: A test was given to a group of students. The grades and gender are summarized below A Male 3 Female…

A: From the given information, ABCTotalMale3201134Female516627Total8361761

Q: 5. (a) Show algebraically that () where n, r and z are positive integers with r < r and z <n-r. (b)…

A:

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A: The probability distribution of discrete random variable X is given.

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A: From the provided information,If we roll a sum total of 6 or 8, then our friend pays us $30.If we…

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A: (i) To find P(X=0.6, Y=0.6), you need to calculate the probability that both X and Y equal 0.6.…

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A:

Q: Medical Operations The director of a medical hospital feels that her surgeons perform more…

A: From the provided information,

Q: The Social Security Administration documented the marriage year of various couples, along with the…

A: Total number of couple=249

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A: We have given that  For machine 1 :Mean() = 0.5Standard deviation() = 0.3For machine 2 :Mean() =…

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A: f(x)=

Q: Consider a random variable, z, that has a standardized normal distribution. Determine the following…

A: Consider a random variable follows a standard normal distribution.i.e.

Q: Use the data in the following table, which lists drive-thru order accuracy at popular fast food…

A: The frequency table corresponding to drive thru order accuracy of fast-food chains given.

Q: Example 3) Group of children by one of four hair colors, and by type of hair. Hair Type Wavy…

A: As per our guidelines we are supposed to answer only three subparts kindly post the remaining…