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Q: b) Let X to be a random sample from a distribution with a probability density function given by…

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Q: and a standard deviation of 1.3 degrees Celsius.

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Q: 3 500 0≤x≤ys 10 1. Find the expected value of Y. f(x, y) =

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Q: Twenty percent of all telephones of a certain type are submitted for service while under warranty.…

A: given data  P(repair) = 0.70 P(replace) = 0.30 purchase n = 10 mobiles P(exactly4 will replaced) = ?…

Q: Suppose that designing phone is a random experiment. A phone model can be developed from two…

A: Given: n(RAM size) = 2 n (Storage sizes) = 3 n(Rear cam) = 3 Using combinations, the total number of…

Q: need help understanding this problem. The answer did not explain how they got the results well. In…

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Q: Suppose that the recovery period, in days, for patients having back surgery is normally distributed…

A: Given : n=39 Confidence interval =99%

Q: that (An) rges in babilit to A II ntains a further subsequence that converges a.e. to X. only if…

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Q: al for u has lower limit x 2.13- interval X ± 1.96 σ discussed in t

A: Length of a confidence interval is calculated as  Suppose θ is a parameter for the confidence…

Q: If one card is drawn from an ordinary deck of cards, find the probability of getting the following.…

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Q: Problem Suppose the number of beds in a sample of 12 private hospitals and 15 public hospitals were…

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Q: 3. A branch of a certain bank in New York City has six ATMs. Let X represent the number of machines…

A: As per the Bartleby guildlines we have to solve first three subparts and rest can be reposted...…

Q: If X is a binomial r.v. with expected value 6 and variance 2.4, find P{X = 2}. lint. EX = µ = np = 6…

A: The random variable of interest is X.

Q: Group1 Group2 1199 459 1182 509 1210 524 1223 494 1172 444 1190 540 1203 468 1240 488 1200 384 1176…

A: Hi, since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: i) Derive the standard error of ß, se(B) = 0.0009, using MLE approach. ii) Find an approximate 95%…

A: Firstly we have to find the MLE of the parameter and then variance to get the required confidence…

Q: If a typist makes an average of three errors for every hour, what is the probability that he will…

A: Given: Average error =3/hourto calculate= p(50 errors in eight hours)

Q: How many 10 digit real even number can be created (It cannot start with a 0) with 5 zeroes and 5…

A: Basic concepts of making combination are used. Information given, As we have only two choices of…

Q: You have just talked to a randomly selected person who was wearing a red shirt, but forgot to ask…

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Q: Data from the Centers for Disease Control for a recent year indicate that there were approximately…

A: Given: Total population = 4295000 Numbet of people survived = 4291113

Q: 2. Consider the conditional mean of X₁ given X2. This conditional mean is a function of X₁. True or…

A: It is given that the statement about to the conditional mean. Here, need to find out the given…

Q: 2. A department store receives an average of 5 returned items per day. The probability that a…

A: A discrete random variable X is said to follow Poisson distribution with parameter , if its…

Q: In a survey, 45% of the interviewees are of age below 30, 30% are between 30 and 50, and 25% are…

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Q: Let P(A) = 20 and P(B) = .04. Also events A and B are independent. Find a. P(A/B) b. P(BAS) C.…

A: It is given that the events A and B are independent such as  P(A) = 0.20 P(B) = 0.64

Q: What is the probability that at least two out of n people have some birthday? Assume 365 days in a…

A: According to the classical definition of probability, the probability of an event is the ratio of…

Q: 6. A particular telephone number is used to receive both voice calls and fax messages. Suppose that…

A: Let p be the probability of recive fax message n be the sample size  n=25, p=25% Let X be the number…

Q: c) A research conducted by SSTA022 Class representative at the University of Limpopo indicates that…

A: In hypothesis testing, there are always two hypotheses. These are null and alternative hypotheses.…

Q: There is a jar of coins sitting on the table in the center of the room. The jar contains 9 pennies,…

A: given data   jar contains : 9 - pennies    1 cent 12 - nickles  - 5 cent 10 - dimes  - 10 cent 5 -…

Q: A department store receives an average of 5 returned items per day. The probability that a returned…

A: Please note that as per our guidelines if multiple sub-parts are there in a question we can answer…

Q: A. You note that your officer is happy in 60% cases of your calls. You also notice that if he is…

A: given data event A: officer is happy            B: accedes your request P(A) = 0.60P(A') = 1-0.60 =…

Q: 4. (34/235, Binomial Probability Distribution) The UPang Graduate School shows that 28% of master's…

A: Given,n=15p=0.28q=1-0.28=0.72A random variable X~Binomial(n=15 , p=0.28)P(X=x)=Cx(0.28)x(0.72)15-x…

Q: 9. To investigate how often families eat at home, a researcher surveyed 100 adults living with…

A: No. of meals eaten at home per week (x) frequency 0 25 1 30 2 25 ≥3 20 total n = 10

Q: 3. The average noontime temperature in a certain location is normally distributed with a mean of 32…

A: Let X be the average noontime temperature X~N(mean=32, standard deviations σ=1.3)

Q: Problem Suppose the number of beds in a sample of 12 private hospitals and 15 public hospitals were…

A: For Private Hospital:  Let Xi's denotes the beds in private hospitals.  Mean (X)== ΣXi/n Where n is…

Q: Ms. M has 12 blouses and 4 skirts in her drawer. Of her blouses,

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Q: Consider the following contingency table. B BC Total A 48 45 93 AC 33 24 47 Total 81 69 150 a.…

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Q: You are planning to place a bet on your local sports team, the Red Sparrows. The Sparrow's have a…

A: Given that,  They are planning to bet on red sparrows team. the sparrows team has a past record of 4…

Q: 1. How many ways can you flip a coin and roll four-sided tetrahedron dice? Draw the tree diagram in…

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Q: and Sto emical 2→ КС N 02 he lik (II ide. On a quiz show, a contestant stands at the entrance to a…

A: Please find the explanation below. Thank you.

Q: The average income tax refund for the 2009 tax year was $3071. Assume the refund per person follows…

A: Mean(µ) = 3071Standard deviations (σ) = 984X ~ N (µ, σ )= N(3071,984)

Q: What is the answer for 4.21 a? "Which of E[X] or E[Y] do you think is larger? Why?"

A: Given: Total number of buses=4 total students=148   Note: I have answered only 4.21 (a) since you…

Q: The function f(x) is the probability density function, that describes the random variable travel…

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Q: Consider a cohort of patients receiving an experimental two-year treatment for a serious disease.…

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Q: in how many ways can 5 starting positions on a basketball team be filled with 12 men who can play…

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Q: PLEASE WRITE THE COMPLETE SOLUTIONS LEGIBLY. NO LONG EXPLANATION NEEDED. BOX THE FINAL ANSWER.…

A: given data  roll a dice 3 times  P(exactly 3 fives) = ?

Q: When you found marginal density of Y, bounds of 0 to y were used on the integral. When the marginal…

A: Given that   We have to answer the doubt of the student:

Q: An un contains 4 white balls and 6 red balls. A second um contains 7 white balls and 3 red balls. An…

A: It is given that the probability of selecting the first urn is 0.9.

Q: Problem Suppose the number of beds in a sample of 12 private hospitals and 15 public hospitals were…

A: For Private hospital:  5th percentile is, P5= 5*(12+1)/100 th term = 0.65th term = 1st term  = 127…

Q: Suppose that X takes all its values in No {0, 1, 2, 3, ...}. Show that 8 EX= ΣPr(X > n). n=0

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Q: Could you revise c and do d, e and f . please

A: Given, Mean=3 Variance=16

Q: The length of time required by students to complete a 1-hour exam is a random variable X (in hours)…

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you…