01/25/21

Which of the following ordered pairs represents the initial value of the function?
The Lakeside Marina charges a $35 rental fee for a boat in addition to charging $15 per hour. You can represent the situation with the following equation: y=15x+35 (0, 15). (0, 35) (0, 45) (0,... more
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01/09/21

A machine that manufactures automobile parts produces defective parts 14% of the time. If 6
A machine that manufactures automobile parts produces defective parts 14%of the time. If 6parts produced by this machine are randomly selected, what is the probability that fewer than 2of the parts... more
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07/08/20

Coins Question!
In a cash register there are nickels, dimes, and quarters. One half the coins are nickels, one fifth are dimes, and the rest are quarters. If the total value is $6.00, how many coins of each type... more
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07/07/20

Statistic worksheet
1.     Of a random sample of 198 marketing students 98 rated a case of resume inflation as unethical.Based on this information, a statistician computed for the population proportion a confidence... more
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06/21/20

Given X is a continuous random variable with the pdf f(x) on [0,6] as drawn. Shade in P(X>4)
. Shade in P(X>4)
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06/20/20

The following table represent the number of dogs per household in a small town. Dogs 0 1 2 3 4 5 Households 1491 425 168 48 29 14
Given x={0,1,...,5} Are any the these events unusual? Explain.
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06/02/20

part of my egents packet
Erica, the manager at Stellarbeans, collected data on the daily high temperature and revenue from coee sales.Data from nine days this past fall are shown in the table below. ... more
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06/02/20

Solve the equation for y. (y -3)^2 = 4y -12
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06/02/20

math help quickly please!!!!!!
An outdoor club conducted a survey of its members. The members were asked to state their preference between skiing and snowboarding. Each member had to pick one. Of the 60 males, 45 stated they... more
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06/02/20

The experimental difference of the means is ---%?
A randomized comparative experiment tests whether listening to music between classes affects the test scores (expressed as a percent) of students. The control group has 10 students and the... more
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05/31/20

What is the difference between the Beta and Gamma distribution?
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05/28/20

Find standard deviation and probability
The results of a test given to a group of students are normally distributed with a mean of 71. In the test, 85% of students scored at less than 80. To pass the test a student must score at least... more
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05/06/20

Probability Problems
The probability that Jim goes to work by taxi is 0.3. He works 6 days in a week. Find the probability that Jim goes to work by taxi in at least 3 days in a week given that (i) he goes to work by... more
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05/05/20

Three Probability Questions That Are Hard To Solve!
I am having Difficulty answering these three probability questions. If you could, could you help? Thanks!A group of people were asked “What time do you prefer to see a movie? The two way table... more
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03/11/20

Math dice problem
A four-sided dice with numbers 1-4 is tossed many times and each time the number is written on a table: a) number 1 (frequency: 18); b) number 2 (frequency: x); c) number 3 (frequency: y); d)... more
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03/07/20

Multiple choice: Probability
A particular system is composed of three machine. A, B, and C. The entire system will work as long as any one (or more than one of the three machines works. (The system is WITH backup).P(A works) =... more
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03/03/20

stats hw help..
A probability experiment is conducted in which the sample space of the experiment is Sequals=StartSet 4 comma 5 comma 6 comma 7 comma 8 comma 9 comma 10 comma 11 comma 12 comma 13 comma 14 comma 15... more
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03/03/20

help with stats hw
A standard deck of cards contains 52 cards. One card is selected from the deck. ​(a) Compute the probability of randomly selecting a five or seven. ​(b) Compute the probability of randomly... more
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02/18/20

What is the value of the sample test statistic? (Round your answer to three decimal places.)

The manufacturer of a sports car claims that the fuel injection system lasts 48 months before it needs to be replaced. A consumer group tests this claim by surveying a random sample of 10 owners... more
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Sol

02/14/20

Three consecutive integers have a sum of 87
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02/13/20

What is the test statistic, P value, and conclusion?
In​ 1997, a survey of 880880 households showed that 134134 of them use​ e-mail. Use those sample results to test the claim that more than​ 15% of households use​ e-mail. Use a 0.05 significance... more
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09/29/14

a random sample of 87 observations produced a mean=26.2 and a standard deviation s=2.5.find a95% confidence interval
a random sample of 87 observations produced a mean=26.2 and a standard deviation s=2.5 Find a 95% interval Find a 90% interval Find a 99% interval  
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