A random variable X has following distribution x=x P(X=x) 1 2 3 4 5 k 3k 5k 7k 8k 6K 6 k Then P (2≤x≤5)=

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A: The question is about regression.Given :x : Average no. of hours the student spent working on math.y…

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A: Given ,Mean , Standard deviation , 7

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A: The question is about discrete probability distribution.Given :

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Q: random Let X be a binomial variable with mean 1 and variance 3. The probability that X takes the 4…

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Q: A regression was run to determine if there is a relationship between hours of TV watched per day (x)…

A: 28.0 Explanation:The regression equation is given asy=ax+bwherea is the slope of the line, andb is…

Q: Lindo is deciding which course she wants to take in her next college semester. The probability that…

A: 0.72Explanation:Note that this problem involves the concept of conditional probabilities. Let A and…

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Q: Using the following information, calculate the t test statistic by hand. mean 1 = 200, mean 2 = 198,…

A: The objective of this question is to calculate the t test statistic using the given data. The t test…

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

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

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)!

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A: The weights are normally distributed with want to calculate the mean weight will be greater than how…

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A:

Q: Consider the following data: 2.1, 4.6, 2,7.3, 0.5, 3.1,8,0.9,9,9.7. Calculate the inter-quartile…

A: The interquartile range is 6.525.Explanation:The interquartile range is the distance between the…

Q: An article reports measurements of the total power, on the log scale, of the heart rate variability,…

A: From the information, given thatLet  denotes the population mean for the patients aged 25-49…

Q: A survey found that men's heights are normally distributed with mean 68.4 in. and standard deviation…

A: The doorway height that would allow 90% of men to fit without bending is approximately 73.4…

Q: Kirstyn conducted an experiment to determine if high school athletes run faster after warming up.…

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Q: Type-II error is? A. Rejecting the null hypothesis when it is actually true B. Not rejecting the…

A: The type II error is defined as "Fails to reject the null hypothesis when it is actually false."

Q: Explain what's wrong with the following statement: The parameters of the simple linear regression…

A: The statement is wrong since in simple linear regression, there are only two parameters, which is…

Q: Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0…

A: The graph represents the standard normal distribution with mean 0 and standard deviation of 1. That…

Q: If the standard deviation of the mean for the sampling distribution of random samples of size 36…

A: Given, that the standard deviation of the mean for a sample size of : Math input errorMath input…

Q: Pg94 #4. Nominal Data When the Indianapolis Colts recently won the Super Bowl, the numbers on the…

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

Q: The city of Pine Bluffs is studying the relationship between the number of police officers employed…

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Q: Given two dependent random samples with the following results: Population 1 27 23 32 42 47 29 28…

A: The objective of this question is to find the 95% confidence interval for the true difference…

Q: The table below shows the number of state-registered automatic weapons and the murder rate for…

A: x = thousands of automatic weaponsy = murders per 100,000…

Q: The following estimated regression equation is based on 30 observations. y = 18+3.8x1-2.5x2 +7.7x3 +…

A: The estimated regression equation is 18+3.8x1-2.5x2+7.7x3+2.9x4As per given regression equation,…

Q: In a survey, respondents were asked "If your party nominated a woman for President, would you vote…

A: The chi-square test of independence between race and survey response is performed using the formula…

Q: A researcher thinks that how often someone reports visiting a science museum in a year is different…

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Q: Suppose that you have a four-sided die that is equally weighted (i.e. equal chance of any of the…

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Q: the (approximate) probability that the number having at least one VCR is exactly 3. Be sure to use…

A: Let X be the random variable that is the number of US households that have at least one VCR.Here The…

Q: Consider the Markov chain with transition matrix P = 0 0 1 0 (a) Show that this is irreducible and…

A: Given the Markov chain with transition matrix:

Q: Briefly describe the importance of statistics in business

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A: a. P = 0.06%b. P = 89.47%c. P = 0.23%Explanation:(a)Probability computation using Online…

Q: The accompanying data file contains 20 observations on the response variable y along with the…

A: The given data is,…

Q: As a reward for completing a reading challenge, two elementary school students are allowed to select…

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Q: defectives found. Obtain the probability distribution of X if the items chosen (a) with replacement.…

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Q: Here is data with y as the response variable. y 39.3 74.7 41.6 42.3 61.8 122.7 -6.2 20.2 25.2 79.6…

A: The linear regression equation is represented as,where,m denotes the slopex denotes the independent…

Q: Find the critical value tε for the confidence level c = 0.90 and sample size n = 23. Click the icon…

A: The objective of this question is to find the critical value tε for a given confidence level and…

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: Find the specified probability. 17) Use the following probability distribution to determine P(5 <X≤…

A: The probability distribution table for the random variable x is…

Q: Of all students enrolled at a large undergraduate university, 54% are seniors, 16% are juniors, 14%…

A: It is given that, in a large undergraduate university 54% are seniors, 16% are juniors, 14% are…

Q: For the following following numerical observations, calculate the class width for a histogram.

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Q: Annabel, a retail analyst, has been following Under Armour, Incorporated, the pioneer in the…

A: A regression is a technique in statistics that relates a dependent and independent variable. In this…

Q: 2. Use the following methods to test Hoμ₁ = μ2 versus Hд μ₁ μ₂ for the data in worksheet 9.2 of the…

A: Given the data…

Q: The random variable X is the number of color television sets owned by a randomly selected household…

A: (a) The mean is 1.276. (b) The standard deviation is 1.263. (c) The probability histogram is option…

Q: Jake keeps a log of the distance he covers, in miles, on each of his daily running workouts. Over…

A: The objective of this question is to find the 90% confidence interval for the mean number of miles…

Q: A particular forecasting model was used to forecast a six-month period. Here are the forecasts and…

A: The data for forecasted and actual values is given as:Forecast value: Actual value:  April260210…

Q: The mean length of 25 newly hatched iguanas is 7.47 inches with a standard deviation of 0.77 inches.…

A: The objective of this question is to calculate the margin of error for a 98% confidence interval for…

Q: show clear and accurate working out please

A: Problem 1The sample proportion of the members used the Cardion Machine is 0.1538The 97% Confidence…