Calculus and Above

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Sixty eight percent of the cases in a normal distribution
Sixty eight percent of the cases in a normal distribution with a mean of 100 and a standard deviation of 10 would fall between;… read more
R.R. Jha
Bachelor's Degree
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The question is assuming body temperature is normally
the question is assuming body temperature is normally distributed what is the range(low to high) of body temperatures for the middle 68% of normal healthy adults … read more
Ryan
Bachelor's Degree
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Score ​-3.0 -2.8 ​-2.6 ​-2.4 ​ -2.2 ​-2.0 ​ -1.8 ​-1.6 ​-1.4
score ​-3.0 -2.8 ​-2.6 ​-2.4 ​ -2.2 ​-2.0 ​ -1.8 ​-1.6 ​-1.4 ​-1.2 Percentile 0.13 0.26 0.47 0.82 1.39 2.28 3.59 5.48 8.08 11.51​z-score ​-1.0 ​-0.8 ​-0.6 ​ -0.4 ​-0.2 0.2 0.4 0.6 0.8 1 Percentile 15.… read more
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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
Sandhya_sharma
Master's Degree
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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
Ryan
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QUESTION FOR SUSAN ATHENA In july 2010, lender processing
QUESTION FOR SUSAN ATHENA In july 2010, lender processing services reported that homeowners were defaulting in record numbers; 12.4% of mortgages were delinquent or in foreclosure. Suppose a large ban… read more
SusanAthena
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There are approximately 13% of plain M&Ms that are red. Suppose
There are approximately 13% of plain M&M's that are red. Suppose that medium -sized bags contain 120 candies. A class of elementary students learning about %'s opens several bags, count the colors and… read more
Trigeoscal
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3. The mean time taken by all participants to run a road race
3. The mean time taken by all participants to run a road race was found to be 220 minutes with a standard deviation of 20 minutes. Using the 68 – 95 – 99.7 Rule, find the percentage of runners who ran… read more
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Generate confidence intervals of 90%, 95%, and 99.7% for the
Generate confidence intervals of 90%, 95%, and 99.7% for the entire population earnings using the t-distribution. Repeat the previous step, but this time by sex, and compare the income levels for the … read more
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Master's Degree
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Hi Guru,I was hoping you could help me out with this CI
Hi Guru, I was hoping you could help me out with this CI exercise. Generate confidence intervals for earnings, using all observations, as well as separately for the categories men and women, using the… read more
Chirag
Master's Degree
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The distribution of heights of young men is approximately Normal
The distribution of heights of young men is approximately Normal with mean 70 inches and standard deviation 2.5 inches. Use 68-95-99.7 rule to answer the following questions. a. what % of men are tall… read more
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Could you check my answer on these questions, please? 3.76 A large population has a mean of 310 and a standard deviation of 37. Using the empirical rule, find what percentage of the observations fall … read more
Osbert12
Master's Degree
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A sample of 3000 observations has a mean of 82 and a standard
A sample of 3000 observations has a mean of 82 and a standard deviation of 16. Using the empirical rule, find what percentage of the observations fall in the intervals ± 1s, ± 2s, and ± 3s.… read more
Ryan
Bachelor's Degree
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If you could help me with these and explain your work, I would
If you could help me with these and explain your work, I would appreciate it! A large population has a mean of 310 and a standard deviation of 37. Using the empirical rule, find what percentage of the… read more
Ryan
Bachelor's Degree
4,665 satisfied customers
What percent of observations fall between the mean and one
What percent of observations fall between the mean and one standard deviation? In a normal distribution, 95% of the data is located between the mean and how many standard deviations? In a normal distr… read more
Stevewh
Teacher
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A set of data is normally distributed with a mean of 200 and
A set of data is normally distributed with a mean of 200 and standard deviation of 50. · What would be the standard score for a score of 100? · What percentage of scores is between 200 and 100? · What… read more
Mr. Gregory White
Master's Degree
Master's Degree
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given mean 152.7; stanard dev. +/-17.6; range of 109-176; median
given mean 152.7; stanard dev. +/-17.6; range of 109-176; median 154.5; what is the percentage… read more
Scott
Master's Degree
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