Pre-Calculus

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What should the standard deviation adjustment be when A
What should the standard deviation adjustment be when A sample of size 40 is drawn from a population with mean 100 and standard deviation 40.… read more
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A population of values has a normal distribution with μ =
A population of values has a normal distribution with μ = 212.5 and σ = 93.1 . A random sample of size n = 30 is drawn.Find the probability that a single randomly selected value is between 205.7 and 2… read more
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A TV executive is interested in the popularity of a
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Not all visitors to a certain company's website are
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Monitors manufactured by TSI Electronics have life spans
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Assume that 12 jurors are randomly selected from a
Assume that 12 jurors are randomly selected from a population in which 83% of the people are Mexican-Americans. Refer to the probability distribution table below and find the indicated probabilities. … read more
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Suppose x has a distribution with a mean of 80 and a
Suppose x has a distribution with a mean of 80 and a standard deviation of 9. Random samples of size n = 36 are drawn. (a) Describe the x bar distribution. x bar has a normal distribution. x bar has a… read more
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For his PhD project, on a randomly selected day in May, Ali
For his PhD project, on a randomly selected day in May, Ali Cem samples 250 observations, from a population that is assumed to be normal, with a sample mean of 23 and a population standard deviation o… read more
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For his PhD project, on a randomly selected day in May, Ali
For his PhD project, on a randomly selected day in May, Ali Cem samples 250 observations, from a population that is assumed to be normal, with a sample mean of 23 and a population standard deviation o… read more
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Question 1 of 40 2.5 Points The distribution of .A. degrees
Question 1 of 40 2.5 Points The distribution of B.A. degrees conferred by a local college is listed below, by major. Major Frequency English 2073 Mathematics 2164 Chemistry 318 Physics 856 Liberal Art… read more
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I am looking at a set of questions you answered 9 months
Hi Ryan, I am looking at a set of questions you answered 9 months ago. How can I get those answers. ***** ***** … read more
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Question 1 Assume that the weight loss first month
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Question 1 1. Find the indicated probability. A sample space
Question 1 1. Find the indicated probability. A sample space consists of 174 separate events that are equally likely. What is the probability of each? 0 1 174 1/174 Question 2 1. From the information … read more
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Question 1 of 40 2.5 Points Of 1308 people who came into a
Question 1 of 40 2.5 Points Of 1308 people who came into a blood bank to give blood, 314 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will h… read more
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Question 1 1. Find the indicated probability. A sample space
Question 1 1. Find the indicated probability. A sample space consists of 174 separate events that are equally likely. What is the probability of each? 0 1 174 1/174 Question 2 1. From the information … read more
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Please not that a proper conclusion specific to the problem
Please not that a proper conclusion specific to the problem at hand must be provided for each answer. (Example: If a question asks, what is the probability of selecting a worker at random and finding … read more
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1. For a particular sample of 80 scores on a psychology exam,
1. For a particular sample of 80 scores on a psychology exam, the following results were obtained. First quartile = 65 Third quartile = 98 Standard deviation = 8 Range = 56 Mean = 83 Median = 81 Mode … read more
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What is the mean annual snowfall during 49 randomly picked years?
Solve the problem. The amount of snowfall falling in a certain mountain range is normally distributed with a mean of 94 inches, and a standard deviation of 14 inches. What is the probability that the … read more
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