01/02/24

What is the value of cot(113pi/12)?
What is the value of cot(113pi/12)?
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12/26/23

What is the expected value of your bet? Round your answer to two decimal places. Losses must be expressed as negative values.
Suppose that you and a friend are playing cards and you decide to make a friendly wager. The bet is that you will draw two cards without replacement from a standard deck. If both cards are clubs,... more
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12/21/23

Five teachers at Springfield Elementary School are randomly selected without replacement, and the number of years they taught at the school is recorded
Not binomial; there is not a fixed number of trials Not binomial; there are more than two outcomes for each trial Not binomial; the trials are not independent Not binomial; for more than one of... more
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06/27/23

The number of people who survived the Titanic based on class and gender is in the following table. Suppose a person is picked at random from the survivors.
The number of people who survived the Titanic based on class and gender is in the following table. Suppose a person is picked at random from the... more
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06/12/23

Ch 5, 6, 7, Questions 3
The mass of a species of mouse commonly found in houses is normally distributed with a mean of 20.9 grams with a standard deviation of 0.12 grams.Round your answers to 3 decimals.a) 10% of all mice... more
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06/11/23

Statistics Ch. 10.3
Test the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .10 significance level.The null and alternative hypothesis would be:H0: PM=PFH1:... more
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04/10/23

What is normal, when it comes to people's body temperatures?

A random sample of 550 human body temperatures had a mean of 98.35° and a standard deviation of 0.72°. (a) Construct a 99% confidence interval for the average body temperature of healthy people.
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04/10/23

find the confidence interval

In addition to teachers and administrative staff, schools also have many other employees, including bus drivers, custodians, and cafeteria workers. In Auburn, WA, the average hourly wage is $24.98... more
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04/09/23

A political candidate has asked you to conduct a poll to determine what percentage of people support her.
A political candidate has asked you to conduct a poll to determine what percentage of people support her.If the candidate only wants a 7% margin of error at a 95% confidence level, what size of... more
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03/26/23

P(z<c)=0.8854 Find C
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03/25/23

Statistics and Probability
Out of 600 people sampled, 96 had kids.The best point estimate for p is Incorrect.The margin of error for a 99% confidence interval is Incorrect.Give your answers as decimals to 3 places.
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03/22/23

Statistics Question

The lengths of a runner's workout have a continuous uniform distribution between 49.29 min and 55.55 min. If one such workout is randomly selected, find P49 P49 = (Report answer accurate to... more
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03/22/23

The graph illustrates a normal distribution for the prices paid for a particular model of HD television. The mean price paid is $1400 and the standard deviation is $145.
965 1110 1255 1400 1545 1690 1835What is the approximate percentage of buyers who paid between $965 and $1400?%What is the approximate percentage of buyers who paid between $1110 and $1400?%What is... more
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03/26/15

What are the values for the fx column?
What are the values for the fx column?  fx = Frequency*Score    Class        Frequency   fx 51 - 60      3                61 - 70      5 71 - 80      12 81 - 90       7 91 - 100    ... more
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11/15/14

Please can you answer these statistic hypothesis for me ?
- A cords manufacturer claims that the standard deviation of the strength of his wrapping cord is 10 pounds. A sample of 14 wrapping cords produced a standard deviation of 12.4 pounds. At α=0.05,... more
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03/17/14

College Women/ Mothers Height Question
Are college women are taller on average than their mothers. The results (in inches) were as follows: Pair             1  2   3   4  5Daughter    66 64 64 69 66Mother       66 62 65 66 63a. Define... more
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02/20/14

statisticWhich data type (categorical, numerical) is each of the following and what is its level of measurement (nominal, ordinal, interval, ratio)? a. Your cu
Which data type (categorical, numerical) is each of the following and what is its level of measurement (nominal, ordinal, interval, ratio)?a. Your current credit card balance.b. Your college... more
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