A person gets to draw one card at random from a jar with four cards for a cash price . The card values are 1, 2, 4, and 5 dollars. What is the person's expected Cash winnings?

Q: The equation of the linear regression line is: y=? +?x (Please show your answers to two decimal…

A: Given: Sample size n = 10 Formula Used: The regression equation: Y = a + bX b = n∑XY-∑X∑Yn∑X2-∑X2 a…

Q: Suppose that the amount of time per day that American adults spend on their mobile devices is…

A: GivenMean(μ)=229standard deviation(σ)=57

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Q: The US energy information administration claim that United States residential customers use an…

A: Suppose μ is the population average amount of electricity used by residents last year.

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A: Formula : Z =(X - μ)/σ

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A: Given Standard deviations=2 Sample size=31

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A: The regression equation is y= 0.147x - 3.42

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A: Since you have posted multiple questions, as per our guidelines, we have provided answer for first 3…

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A: Explanation: If we toss a coin, there are only two possible outcomes, i.e., head and  tail  Hence,…

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A: Given that Sample size n =940 Sample mean =48.1 Standard deviation =11.3

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A: As per bartlby guidelines we can answer only first three subpart and rest can be reposted

Q: You measure 50 textbooks' weights, and find they have a mean weight of 43 ounces. Assume the…

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Q: Consider 2 sorted lists of size 50 and 60 respectively. Find the number of comparisons needed in the…

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Q: Question 1 Use the command set.seed(student_ID) to initialize the random number generator for part…

A: The data indicates the claim sizes for a certain line of business.

Q: 5. Consider the following binary variable version of the fixed effects model. Each regressor Dj is a…

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Q: The null and alternative hypotheses for a test are given, as well as some information about the…

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Q: 5.6-12. At certain times during the year, a bus company runs a special van holding 10 passengers…

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A: It is given that: n sample size=55x¯ sample mean=44.22σ population standard deviation=32.42

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Q: About 52% of the residents of Capricorn municipality are happy and 48% of the residents are not…

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Q: Suppose that the amount of time per day that American adults spend on their mobile devices is…

A: From the provided information, Mean (µ) = 229 Standard deviation (σ) = 57

Q: c) About 52% of the residents of Capricorn municipality are happy and 48% of the residents are not…

A: Given P(happy) =0.52 P(not happy) =0.48 P(Favour |happy ) =0.75 P(Favour |not happy ) 0.25

Q: Xx 0 1/6 1/6 1/6 1/6 1/6 0 0 Find Var(X), Var(Y), and the covariance and correlation of (X,Y).…

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Q: student(s) (Round to the nearest whole number as needed.)

A: It is given that  Mean, μ = 115 Standard deviation, σ = 14 Sample size, n = 650 Z-Score, Z = ( X - μ…

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A: Given:- No of days the accidents are recorded n=100 days. Number of accidents per day for evening…

Q: Express the confidence interval (29.2%,37%) in the form of ˆp±MEp. ___% ± ___%

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Q: The null and alternative hypotheses for a test are given, as well as some information about the…

A: Given data: H0:μ=30          vs         Ha:μ≠30 x(bar)=12, s=3.8, n=40

Q: 1. Find the values of z for the given values of a in the following table: 0.05 0.01 0.005 0.001 a Za…

A: By using standard normal table we will answer the following table

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A: A sample of size 24 with mean 52.2 and standard deviation 16.4 The confidence level is 90%.…

Q: Find the mean: You are given the following hypotheses: Ho: μ-60 HA: μ< 60 We know that the sample…

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Q: viatio

A: Mean = 97  SD = 12  Margin of error E= 3 We want to be 99% certain that we are within 3 IQ point of…

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Q: The variation. curve describes are due to: a. Nonassignable causes b. Catastrophic failure c.…

A: We know that in general, the random things follow Normal distribution for e.g.-if you collect…

Q: If n=23, ¯xx¯(x-bar)=31, and s=9, find the margin of error at a 99% confidence level Give your…

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Q: i) expected return for Lilac ordinary share ii) Standard deviation of return for lilac ordinary…

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A: Given Mean=29 Standard deviation=14

Q: correlation between the two variables. Use a significance level of Internet Users 66.5 76.6 80.1…

A: From the above data  The test statistic t=2.63 And  P value =0.058

Q: 1. The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month…

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A: Given:Two factors are temperature and pressure are given.Three levels.So this is 32 factorial…

Q: Listed below are the heights (cm) of winning presidential candidates and their main opponents from…

A: Solution-: Let, X=President height and Y= Opponent height We have following table: X Y 192 180…

Q: You wish to test the following claim (Ha) at a significance level of a = 0.005. Ho: μ = 71.5 Ha: μ >…

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