results of a survey of visitors at the Eiffel Tower showed that 25 spoke English, 15 spoke French, and 8 spoke both English and French. How many spoke English or French?

Q: 3.19 What is the probability that exactly one of the three people has Alzheimer's disease?

A: Given that, estimates of the prevalence  of Alzheimer's disease have been recently provided by…

Q: Annual Weather Average Temperature Averages in Port M Average Rainfall

A: Temperature rainfall graph shows yearly temperature and rainfall statistics for a given location.

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

A: Firstly it is required to determine the MLE of the parameter and then the variance to get the…

Q: Should an observational study or an experiment be performed to answer the research question below?…

A: Concept: In research design usually two type of study is done namely  Experimental and Observational…

Q: a normal distribution has a mean of 125 and a standard deviation of 8. find the z-score for a data…

A: Ans#- A normal distribution has a mean of μ = 125 and a standard deviation of  σ = 8.           Find…

Q: Suppose that a South African Broadcasting Corporation (SABC) official wants to conduct a survey in…

A: Given Information: Confidence level is 95% Significance level α=1-0.95=0.05 The margin of error is…

Q: Evaluate p = 12 || x₁ + x2 n₁ + n₂ for x₁ = 2, X₂ = 15, n₁ = 53, and n₂ = 34. (Round to four decimal…

A:

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

A: Given information: x¯1-x¯2=34%s12=110.25%s22=104.04%n1=31n2=31

Q: Using standard normal table, Find the following probability P(Z>1.28)= Round to 5 decimal…

A: Answer: For the given data, Using standard normal table, The probability P(Z>1.28) is:

Q: compute the mean or expected payout of the ticket.

A:

Q: Seat Designs. In Exercises 7-9, assume that when seated, adult males have back-to-knee lengths that…

A: From the provided information, Mean (µ) = 23.5 Standard deviation (σ) = 1.1 X~N (23.5, 1.1)

Q: d. The arithmetic mean an on were 60 and 15 respect cking, it was found that the

A: The data of 100 students scores; Mean and standard deviation is 60 and 15

Q: Let S be the universal set, where: S = {1, 2, 3, ..., 23, 24, 25} Let sets A and B be subsets of S,…

A: let S be a universal set, S={1,2,3,...,23,24,25}and sets A and B be subsets of S, set…

Q: 44 68 71 80 48 64 78 60 81 35 49 53 69 89 65 45 84 57 70 95 37 Q6) for the following data 71 86 45…

A: Data given…

Q: a sample of size n= 10 is drawn from a population. that data is shown below.…

A: a. The sample size is n = 10.

Q: Gail averages 64 words per minute on a typing test with a standard deviation of 9.5 words per…

A: The following information has been given: Let X be a random variable represents the number of words…

Q: Bill 108$ you paid 125 $ how many percent you paid for tip?

A: Given: Bill = $108 Paid money = $125 To find: Percent of tip =?

Q: Consider the following example survey results of 18-34 years olds in the United States, in response…

A: Contingency table explain the frequency of categorical variable. It explain the similarity and…

Q: elsewhere Find the value of c such that an interval from x to cx is a (1-a) 100% confidence interval…

A:

Q: Use the table in this document to record the frequency of each color. Then, compute the relative…

A: Given: n = 57 Formula Used: Relative frequency = Fn

Q: Find the mean of the data summarized in the given frequency Speed (miles per hour) Frequency 42-45…

A: given data  speed frequency(f) midpoint(x) f*x 42-45 26 43.5 1131 46-49 12 47.5 570 50-53 6…

Q: Q1). for the following data, (5, 64, 41, 7, 18, 40, 95), the Harmonic Mean (H) is 14.7647 O 14.6747…

A:

Q: Draw the Venn Diagram of the sample space.

A: Given: A denotes that student enrolled in a calculus course  B denotes that student enrolled in a…

Q: Exam For a group of 200 candidates, the mean and standard deviation of scores were found to be 40…

A:

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

A: Firstly it is required to determine the MLE of the parameter and then the variance to get the…

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: (b) Find the unweighted mean center, and comment on the differences between your two answers. (c)…

A: Weighted mean center = (3.34, 3.48)

Q: The given data set is: 10 19 5 5 Find the median. 16 7 19 22

A: Ans#- The given data set   10 19 5 5 16 7 19 22 Find the median.

Q: G. Table 1 below shows the number of goals scored by Team Ginebra in the 20 games of the season.…

A:

Q: Consider a regression model of workers' wages using vector-matrix notation and education data. Data…

A: Given information: Person  Wage Constant  Education 1 1.82 1 13 2 2.14 1 15 3 1.56 1 10…

Q: Use the data in the following​ table, which summarizes blood groups and Rh types for randomly…

A: Let define the events: A = Person is having Group A blood group Rh+ = Person is having Rh+ blood…

Q: In doing regression analysis in MS Excel, what are the three sets of data you see from Regression…

A: Concept: Regression analysis in Excel will give you a summary of all the possible values of data…

Q: recent survey of 1050 U.S. adults selected at random showed that 647 consider the occupation of…

A:

Q: b) Suppose that a South African Broadcasting Corporation (SABC) official wants to conduct a survey…

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Q: A company has 10 software engineers and 6 civil engineers. In how many ways can they be seated in a…

A: Given: No of software engineer=10 No of civil engineer=6 how many ways can they be seated in a round…

Q: Solve for the R squared value Given the data using Excel y Signal 0 12.36 24.83 35.91 0.4 48.79 0.5…

A:

Q: Determine if the statement is True or False. If a statement is false, explain why. {1, 8, 6, r} =…

A: We have given that two sets such that  {1, 8, 6, r} = {6, r, 1, 8} We have to explain whether it is…

Q: Evaluate the following formula for x₁ = 2.32, x₂ = 2.62, µ₁ −µ₂ = 0, $₁ = 0.85, s₂ = 0.58, n₁ = 30,…

A: From the provided information, x1=2.32x2=2.62μ1-μ2=0s1=0.85s2=0.58n1=30n2=39

Q: he highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

A: Ans#- The highway mileage (mpg) for a sample of 8 different models of a car company can be found…

Q: There are 6 identical research studies investigating percieved life satisfaction among younger…

A: Given that there are 6 identical research studies investigating perceived life satisfaction among…

Q: Suppose Albers Elementary School has 70 teachers and Bothel Elementary School has 27 teachers. If 21…

A: Let, A: Albers Elementary School teachers B : Bothel Elementary School teachers. From the given…

Q: 1 b) A research conducted by SSTA022 Class representative at the University of Limpopo indicates…

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Q: calculate the mean age of the people in the van.

A: It is given that the data of the ages of 7 people riding in a van to a math competition. The data is…

Q: d. Given the preceding results, what are the percentage of women and the percentage of men in the…

A: only d From given data we have : P(A1)=47%=0.47P(W|A1)=50%=0.50P(W|A2)=45%=0.45

Q: The geometric mean of 10 observations on a certain variable was calculated as 16.2. It was later…

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Q: An investment counselor calls with a hot stock tip. He believes that if the economy remains​ strong,…

A: It is given that an economist who believes there is a 20​% probability the economy will remain​…

Q: Suppose you have a sample of 100 customers that spend an average of $260 with standard deviation…

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Q: elsewhere Find the conditional distribution of the likelihood function given the function of the…

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Q: 3.17 What is the probability that at least one of the women has Alzheimer's disease? DE

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Q: Q2) If the following data set obey linear regression equation

A: