Calculus and Above

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1. A math teacher gives two different tests to measure
1. A math teacher gives two different tests to measure students' aptitude for math. Scores on the first test are normally distributed with a mean of 24 and a standard deviation of 4.5. Scores on the s… read more
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ATTENTION RYAN:STASTIC HOMEWORK1. The amount of Jen's
Attachment: 2015-05-12_195353_exam_4_stastic.docx ATTENTION RYAN: STASTIC HOMEWORK 1. The amount of Jen's monthly electric bill is normally distributed with a mean of $160 and a standard deviation of … read more
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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
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I am working on a statistics worksheet and struggling with understanding how some of it is
I am working on a statistics worksheet and struggling with understanding how some of it is done. This is the worksheet. 12. For the following scores, find the mean, median, sum of squared deviations, … read more
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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
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1.)The claim is the proportion of peas with yellow pods is
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please help!!!mathimatical statistic and probability problem
Q2 (b) The pulse rates of healthy adults are normally distributed with mean 72 and standard deviation of 5. i) Approximately ninety-five percent of the adult population can be said to have their pulse … read more
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Trying to determine t-test value (one-tailed test) to see if
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A grocery stores receipts show that customer purchases have
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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
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I. a. What percentage of the area of the standard normal distribution
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1. A set of 50 data values has a mean of 44 and a variance
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The distribution of heights of young men is approximately Normal
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Hello Greg, I have more work if you want. 1. Consider a
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To susan athena 1) an incoming freshman took her schools placement
To susan athena 1) an incoming freshman took her schools placement exams in french and mathematics. in french, she scored 82 and in math she scored 86. the overall result on the french exam had a mean… read more
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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
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22e. Suppose that you were assigned to write an article for
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The amount of time it takes to recover physiologically from
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