According to government data, 20% of employed women have never been married. If 10 employed women are selected at random, what is the probability a. That exactly 2 have never been married? b. That at most 2 have never been married? c. That at least 8 have been married?

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A: The letters of the word “sixteen” are randomly arranged. What is the probability that the two e’s…

Q: (b) Construct a relative frequency distribution of the data. Potholes Relative Frequency 1 2 3 4 5 6…

A:

Q: QUESTION ONE A. The following table lists the number of days that 15 houses in a particular area…

A: Given: n = 15 Formula Used: Mean X = ∑Xin Standard deviation s = ∑Xi-X2n-1 Z-score = X-Xs

Q: Based on the data below, what is the z-score for a score of 91? 89 86 88 90 90 91 87 89 91 89 87 85…

A: The given data set is, The no.of observations are, n = 70

Q: I don't understand your answer. since there is 1,2,3,4,5,6 choices. what is/are your choices?

A: *value of probability lies between (0 to 1) always * for valid probability density function value of…

Q: what is the probability that exactly 3 small businesses will fail during a given month (

A: Let X denote the number of small businesses failures in a month. It is given that Mean number of…

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Q: The site traffic for a business's website was monitored for 10 days, showing daily traffic of…

A: Answer..

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A: Introduction: In the given scenario, Any bolts that deviate more than two standard deviations from…

Q: This is very helpful, thank you! Could you please share the excel fomulas used to acheve this?

A: The given data is entered in excel as shown below

Q: Question: Is it possible that 70% of all students are below average?

A: From given data we have  Prof. Brown Weighted Average: 76 Prof. Sides Weighted Average: 79

Q: Find the sample variance Given sample 20,13,4,8,10

A: The given sample is 20,13,4,8,10

Q: Find the area under the normal curve to the left of z=−1.54 plus the area under the normal curve to…

A: The given z scores are z=-1.54 and z=2.54.

Q: For a standard normal distribution, find: P(0.17 < z < 1.04)

A: given data standard normal dicttribution Z~N(0,1)find P(0.17&lt;x&lt;1.04) = ?

Q: 2. In a study concerned with the possible effects of all poll bronchitis, the following data were…

A: From the provided information on January 2010, the following tabular interpretation is obtained:…

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A:

Q: (c) P(x = 0) (d) P(x ≥ 3) = (e)p(x ≤ 5) =

A: It is given that X denotes the number of of years a new hire will stay with the company. We have to…

Q: This figure shows a distribution in the form of a histogram. This distribution has which of the…

A: Please find the explanation below. Thank you.

Q: Assume that a distribution of 10000 scores is normally distributed with a mean of 90 and a standard…

A:

Q: A company produces optical-fiber cable with a mean of 0.5 flaws per 100 feet. What is the…

A: A company produces mean of 0.5 flaws per 100 feet.

Q: Question: How many degrees of freedom are there in the distribution of the test statistic for the…

A: Solution-: How many degrees of freedom in the distribution of the test statistic for the regression…

Q: Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1), determine…

A:

Q: Use the given information to draw a Venn diagram. (ANBNC)=3, n(ABC)=8, (Ac)-4, Ananc)= 9, (Annc²) =…

A: Venn Diagram for three events :

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Q: X1 and X2 are indep N(0,1) random variables. Y1=(X1+X2)/2 and Y2={(X1-X2)^2}/2. let 1. find the mgf…

A: Given: X1 and X2 are independent N(0,1) random variable: Y1=X1+X22Y2=X1-X222

Q: Determine the area under the standard normal curve that lies to the left of ​(a) Z=0.59, ​(b)…

A: Dear students as per guidelines we solve only first three subparts of the given questions. Solution

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Q: thats what i got aswell when i worked it but its saying that the answer is incorrect

A: Solution To fund the probability we will use Bayes theorem.

Q: Determine the Mean Squared Error (MSE) using a 3-week simple moving average. Week Sales 73 178 82 89…

A: The data for weekly sales is given.

Q: The following information was generated in Stata from the Behavioral Risk Factor Surveillance System…

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

Q: Consider two random processes x(t) = 3cos(wt+0) and y(t) = 2 cos(@t+0 -π/2), where is a random…

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Q: suppose each employee in the company receives a $3000 raise for next year (each employee's salary is…

A: It is given that the salary of each employee is increased by $3000.

Q: believes that th 272 college student- of One study claimed that 88 % of college students identify…

A: The question is about hypo. testing Given : Popl. prop. of students who identify themselves as…

Q: Find test statistic  Xbar = 23 mean = 20 standard deviation = 10 sample size = 10

A: Given;X¯= 23 mean(μ)= 20 standard deviation(σ)= 10 sample size(n) = 10

Q: A normally distributed random variable has a mean of 449: a. If a score of 325 has a standard normal…

A: Let X has normally distributed random variable.and mean of X=μ=449

Q: e Dollar amount Rent $650 Food $175 Entertainment $100 Bills $91 Charitable donations $100

A: Jalen's net income for the month of May is 1,600. Expense Dollar Rent  650 Food  175…

Q: Consider the following regression model:        Dependent Variable: MU Sample: 134

A: Solution The given analysis is the regression analysis.

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A: Given: Regression equation is: BOD=-55.43+1.507(TOC) where BOD=biochemical oxygen demand TOC=total…

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A: The histogram of the grade for a given exam.

Q: If a procedure meets all of the conditions of a binomial distribution except the number of trials is…

A: Given that  p = 0.12  , q = 1 - p = 1 - 0.12 = 0.88 p = The probability that someone is a universal…

Q: A group of 11 women has an average height of 155.98cm, and a group of 19 men has an average height…

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Q: The area of the shaded region is ext Part 0 0.35 X 0.76 Ś

A: Solution

Q: ith respect to correlation, which one of the following statements is false: a.An extreme score can…

A: Question: With respect to correlation, which one of the following statements is false? a.An extreme…

Q: Here are boxplots of the points scored during the first 10 games of the season for both Holly and…

A: Boxplots are used for graphical representation of five point summary of data that includes maximum,…

Q: In your biology class, your final grade is based on several things: a lab score, scores on two major…

A: Formula for weighted average is as follows :  Weighted average = Number ×Weighted factorSum of the…

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A: The amount of sugar(in mg) in each snack is summarized in the histogram below.Given histogram data:

Q: A random sample of 37 adults had a sample mean height of 168 cms with a sample standard deviation of…

A: Here, x¯=168, s=10, and n=37.

Q: Find the interquartile range.

A:

Q: How do you find the value of zc?

A:

Q: O Suppose that a random variable X has a continuous distribution for which the probability density…

A: