Calculus and Above

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Determine the area under the standard normal curve that lies
Determine the area under the standard normal curve that lies to the right of ​(a) Upper Z equals 0.99 comma ​(b) Upper Z equals 1.62 comma ​(c) Upper Z equals 1.51 comma and ​(d) Upper Z equals 0.38 .… read more
akch2002
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Determine the area under the standard normal curve that lies
Determine the area under the standard normal curve that lies between ​(a) Upper Z equals negative 0.12 and Upper Z equals 0.12​, ​(b) Upper Z equals negative 1.74 and Upper Z equals 0​, and ​(c) Upper… read more
GLENN GILONGOS
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How does this work? and how much does this cost. Statistics
Ryan
Bachelor's Degree
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Im stuck on a Statistics problem, and I need a little help,
Im stuck on a Statistics problem, and I need a little help, but i think im on the wrong site..… read more
Ryan
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Question 1 of 20 5.0 Points The lifetimes of light bulbs of
Question 1 of 20 5.0 Points The lifetimes of light bulbs of a particular type are normally distributed with a mean of 270 hours and a standard deviation of 11 hours. What percentage of the bulbs has l… read more
Ryan
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1) Identify each of the following as examples of nominal, ordinal,
1) Identify each of the following as examples of nominal, ordinal, interval, or ratio scales of measurement. 1. A poll of registered voters in Florida asking wich candidate they support 2. The lenght … read more
Stevewh
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I need my statistics homework checked. I am not sure I understand
I need my statistics homework checked. I am not sure I understand the normal curve correctly. Homework questions below: Apply It #4: Using the 50%-34%-14% approximations of areas under the normal curv… read more
Ryan
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You are interested in the incomes of your customers. A sample
You are interested in the incomes of your customers. A sample of 100 customer incomes yields a standard deviation of \$141,421 and a mean of \$300,000: a. Determine the point estimate (3 points). b. Det… read more
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FOR GURU ONLY --- FOR GURU ONLY!!! Here are the first 40.
FOR GURU ONLY --- FOR GURU ONLY!!! Here are the first 40. As per your last e-mail of only getting half of what you charge, I'll pay \$50 for this first 40 and \$50 for the second 40 questions. If all is… read more
Chirag
Master's Degree
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1) Identify each of the following as examples of nominal, ordinal,
1) Identify each of the following as examples of nominal, ordinal, interval, or ratio scales of measurement. 1. A poll of registered voters in Florida asking wich candidate they support 2. The lenght … read more
Math-John
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1) A set of 50 data values has a mean of 27 and a variance
1) A set of 50 data values has a mean of 27 and a variance of 16. I. Find the standard score (z) for a data value = 19. II. Find the probability of a data value < 19. 2) Find the area under the sta… read more
Math-John
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1. A set of 50 data values has a mean of 44 and a variance
1. A set of 50 data values has a mean of 44 and a variance of 16. I. Find the standard score (z) for a data value = 51. II. Find the probability of a data value < 51. 2. Find the area under the sta… read more
Scott
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Hello my question is for Business statistics and it is If the
Hello my question is for Business statistics and it is If the population proportion is .4 with a sample size of 20, then is this sample large enough so that the sampling distribution of it is a normal… read more
Scott
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2. (Points: 1) True or FalseThe range is a measure
Answer 6. (Points: 1) The numerical value of the coefficient of determination r 2 a. is the proportion of the variation in the dependent variable y that is explained by the best-fit linear equation. b… read more
Math-John
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1) the time to complete a statistics exam is approximately
1) the time to complete a statistics exam is approximately normal distributed with a mean of 105 minutes. 47.5% of the students completed their exam in between 105 and 115 minutes. what is the approxi… read more
SusanAthena
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Hi Greg, I have another assignment if you want it. Please
Hi Greg, I have another assignment if you want it. Please show the work. It's more intro statistics stuff. 1. A set of 50 data values has a mean of 30 and a variance of 4. I. Find the standard score (… read more
Mr. Gregory White
Master's Degree
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The book is called statistics unplugged by Sally Caldwell 3rd
The book is called statistics unplugged by Sally Caldwell 3rd Edition. 1. Explain how you work to find the probability that a randomly selected person has score between -1.2 and 1.2 by using the table… read more
Ryan
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Hello for my Business statistics class I have 2 questions A
Hello for my Business statistics class I have 2 questions A chi-square goodness of fit test is considered to be valid if each of the expected cell frequencies is : the choices are greater than zero, l… read more
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