According to a government study, 15% of all children live in a household that has an income below the poverty level. If a random sample of 15 children is selected:a) what is the probability that 5 or more live in poverty?b) what is the probability that 5 live in poverty?c) what is the expected number (mean) that live in poverty? What is the variance? What is the standard deviation?

Q: The time needed to complete an exam in a college campus is normally distributed with a mean of 80…

A: Given DataMean = 80Standard Deviation = 10a)Probability of completing the exam in one hour or less

Q: Weights

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Q: Heights of 10 year old children, regardless of sex, closely follow a normal distribution with mean…

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A: Given data,μ=12600σ=1570P(X<11000)=?

Q: The bank of America (BOA) issues Visa and Mater Card credit cards. It is known that the balances on…

A: The mean is 789 and the standard deviation is 135.

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A: The mean is 8452 and the standard deviation is 467.

Q: 5. A Nielsen study indicates that mobile subscribers between 18 and 24 years of age spend a…

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Q: he average price of a home in your community is $200,000 with a standard deviation of $30,240. A…

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Q: A bank auditor claims that credit card balances are normally distributed with mean $2000 and…

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Q: The height of 2 year old children are normally distributed with a mean of 32 inches and standard…

A: Given data,μ=32σ=1.5

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Q: In a study of work patterns, data from 669 subjects were collected. For the time spent in child…

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Q: The College Board National Office recently reported that in 2011-2012, the547,038 high school…

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Q: Based on Aircraft Safety Council of Country PQR, an average of 18 aircraft accidents occurred each…

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A: From the provided information, Mean (µ) = 38 Standard deviation (σ) = 6 X~N (38, 6) Sample size (n)…

Q: Given that the mean weight of schoolchildren's book bags is 17.5 pounds, with a standard variation…

A: We have given that Population mean = 17.5 Standard deviation = 2.2 Sample size n =30

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: In a country, a day can be either rainy or sunny. The probability of a day being rainy is 40.0% .…

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Q: 2. Assume salaries of new college graduates in computer information systems (CIS) have a normal…

A: Note: Hi! Thank you for the question, As per the honor code, we are allowed to answer three…

Q: . In order for an engineering graduate to enroll in a master’s program, the graduate studies…

A: GivenMean(μ)=420standard deviation(σ)=100

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Q: Data from the Bureau of Labor Statistics’ Consumer Expenditure Survey show that annual expenditures…

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Q: The distribution of average speeds of the top 53 drivers in NASCAR is roughly symmetric, unimodal,…

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Q: In a survey of a group of​ men, the heights in the​ 20-29 age group were normally​ distributed, with…

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Q: In the study about the family income and their expenditures, families can save an average amount of…

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Q: Given a normal population with mean = 39 and variance = 16, what is the probability of obtaining an…

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Q: Suppose that, in an experiment of casting a single die, six outcomes (X) are equally likely.…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.