Consider the following data: x -7 -6 -5 -4 -3 P(X = x) 0.2 0.1 0.2 0.1 0.4 Step 2 of 5: Find the variance. Round your answer to one decimal place.

Q: Consider the following data: x 6 7 8 P(X = x) 0.1 0.3 0.1 ten 2 of 5. Find the variance Round your…

A: Given that,xP(X=x)60.170.380.190.1100.4

Q: (a) a = (Round to four decimal places as needed.) (b) ẞ= (Round to four decimal places as needed.)…

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Q: Answer this please and provide accurate working out. I want to see if my answer are correct. it is…

A: Sure, I'll help you with both problems.1. **Confidence Interval for Proportion:**  Given:  - Sample…

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A: 3) Given,Event:- Rolling two dice.Favorable outcome is both greater than 4, you will get $9;…

Q: Please do not rely too much on chatgpt, because its answer may be wrong. Please consider it…

A: if any queries please inform me on comment boxThank you Explanation:INTRODUCTIONDetailed…

Q: 8) Determine the probability distribution's missing value. The probability that a tutor will see 0,…

A: x01234P(x)0.090.20.10.04?Find the missing value.

Q: Explain whether one (or both) of the situations for the approximate normality of the sampling…

A: Answer (a):Correct statement are: The population of temperatures is not bell-shaped, and the sample…

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A: The given data is as follows:Sample size, Probability that the dealership's customers report…

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A: [Note: “Since you have posted multiple questions, we will provide the solution only to the first…

Q: = 19.381 + 1.725 1 3.974 0.768 Here is a summary table that can be used to assess the NHSTS for the…

A: The question is about regression.Given :Total no. of observations ( n ) = 26No. of explanatory…

Q: Use the likelihood ratio to finda 95% confidence interval for theta based on data in Table 5.1.…

A: To find a 95% confidence interval for θ using the likelihood ratio, we use the binomial distribution…

Q: please i want full answer for all question 1 and 2 and 3 using minitab or excel asp plleaseHomework…

A: The objective of the question is to perform a series of statistical analyses on a given dataset. The…

Q: tribution of values is normal with a mean of 81.1 and a standard deviation of 47.9. P2, which is the…

A: Population mean=81.1Population standard deviation=47.9

Q: - of U.S. adults say they are more likely to make purchases during a sales tax holiday. You randomly…

A: Number of trail n=10Probability of success p=0.22X~Bin(n,p)nCx=n!/x!(n-x)!

Q: Consider the table of prices (£): Turnip Broccoli 2016 10 12 2017 2018 14 18 13 17 The fixed…

A: Answer = The aggregated index using the Basket of Goods approach in 2018 based on 2017 is 129.6.…

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Q: Consider the function f(x) below. Could f(x) be used as a pmf for a random variable X? If so, state…

A: The function f(x) is given as follows:

Q: I needed help with B.

A: The objective of the question is to test the hypothesis that the proportion of those who are…

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Q: Please do not rely too much on chatgpt, because its answer may be wrong. Please consider it…

A: The Final answer is : i) a>0 and b>0                                    ii) a=0 or b=0…

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Q: You are given the sample mean and the population standard deviation. Use this information to…

A: 90% confidence interval:      (137.14,146.86) 95% confidence interval:      (136.20,147.80)…

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Q: Annual high temperatures in a certain location have been tracked for several years. Let X represent…

A: xy429.48535.2635.62740.24843.46945.981048.91152.821254.141357.361458.481563.21666.221767.241869.9619…

Q: The following table provides the joint probability distribution for the 98th Congress by political…

A: The  joint probability distribution for the 98th Congress by political party is given.Reps…

Q: Consider the following set of dependent and independent variables. Using technology, check for the…

A: The given data is,y x1 x2 x31221671151015135139139101219721824118172916723342042025398274121530The…

Q: Let ŷ represent the profit (or loss) for a certain company I years after 1965. Based on the data…

A: Given , represent the profit (or loss) for a certain company x years after 1965.And also given the…

Q: electrical firm manufactures light bulbs that have a length of life that is approximately normally…

A: Sample size n=45Sample mean=790Population standard deviations=50

Q: In a study entitled How Undergraduate Students Use Credit Cards, Sallie Mae reported that…

A: Null hypothesis:  Ho​:μ=3151Alternate Hypothesis: Ha​:μ>3151The required test statistic is given…

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A: PLAN:Name the inference procedure and check the conditions. Select the 4 statements that are…

Q: Suppose average, recent graduates from the College of Business earn approximately mu = 64,000 per…

A: Mean µ(µ)=$64,0005% below the mean: 0.05∗$64,000=$3,200 decrease10% above the mean:…

Q: Find E(X)

A:

Q: ind the number of 4 letter words with or without meaning, which can be ormed out of the letters of…

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Q: he following table provides the joint probability distribution for the 98th Congress by political…

A: The joint PMF is given as C1C2P10.50.084P20.3130.103Want to calculate the marginal probabilities?

Q: A normal distributed population has parameters μ = 77.4 and σ = 17.9. If a random sample of size n =…

A: In the question, given that,The question's purpose is to determine the mean and St. dev of sample…

Q: A t-value of 3 is significant assuming a two-tailed test, df=99, and a p-value cutoff of p<.05 (use…

A: t=3 , df=99Two tailed

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A: Number of valve assemblies on the production line(exposed group) =20Number of valve assemblies in…

Q: Please show a step-by-step solution. Please do not skip steps.

A: 0.4049 Explanation:The following table shows the hypothesis test for two proportions.HoHaRegion of…

Q: 6. Generate a random variable X from the semicircular density 2 f(x) = πR2 √R²x², -R f(x).

A: Given the semicircular density

Q: Let X be the number of packages being mailed by a randomly selected customer at a certain shipping…

A: Given the distribution of X is : x1234P(x)0.20.10.40.3

Q: The table below shows an index based in 2010 (2010 = 100). Year Index 2011 101.6 2012 107 2013 113.9…

A: The new base year is given by 2012 (2012 = 100)