How far technology can/should go.

How far technology can/should go.

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Simple Statistics

Math Statistics Assignment

Week 4 TDQ assignment

Discrete versus not-discrete. Are the two interchangeable?
What should be used? Where? Why. Your answers must be applicable to statistics.
Discuss. (150 words)

W4 Quiz

Question 1
Marks: 1
W4-02. Suppose x is a random variable best described by a uniform probability distribution with c EQUAL 10 and d EQUAL 90. Find P(x < 42). Choose one answer. a. 0.32 b. 0.4 c. 0.04 d. 0.5 Question 2 Marks: 1 W4-08. The diameters of ball bearings produced in a manufacturing process can be described using a uniform distribution over the interval 3.5 to 5.5 millimeters. What is the probability that a randomly selected ball bearing has a diameter greater than 4.6 millimeters? Choose one answer. a. 0.8364 b. 0.45 c. 0.5111 d. 2 Question 3 Marks: 1 W4-03. Suppose x is a random variable best described by a uniform probability distribution with c EQUAL 20 and d EQUAL 60. Find P(x > 60).
Choose one answer.

a. 1

b. 0.4

c. 0

d. 0.5
Question 4
Marks: 1
W4-01. Suppose x is a random variable best described by a uniform probability distribution with c EQUAL 30 and d EQUAL 90. Find P(30 ≤ x ≤ 45).
Choose one answer.

a. 0.25

b. 0.35

c. 0.15

d. 0.025
Question 5
Marks: 1
W4-04. Suppose x is a uniform random variable with c EQUAL 20 and d EQUAL 60. Find P(x > 44).
Choose one answer.

a. 0.9

b. 0.1

c. 0.6

d. 0.4
Question 6
Marks: 1
W4-19. For a standard normal random variable, find the probability that z exceeds the value -1.65.
Choose one answer.

a. 0.9505

b. 0.0495

c. 0.4505

d. 0.5495
Question 7
Marks: 1
W4-17. Find a value of the standard normal random variable z, called z0, such that P(-z0≤ z ≤ z0) EQUAL 0.98.
Choose one answer.

a. 1.96

b. .99

c. 2.33

d. 1.645
Question 8
Marks: 1
W4-10. A machine is set to pump cleanser into a process at the rate of 9 gallons per minute. Upon inspection, it is learned that the machine actually pumps cleanser at a rate described by the uniform distribution over the interval 8.5 to 11.5 gallons per minute. Find the probability that between 9.0 gallons and 10.0 gallons are pumped during a randomly selected minute.
Choose one answer.

a. 0.67

b. 0

c. 0.33

d. 1
Question 9
Marks: 1
W4-18. Find a value of the standard normal random variable z, called z0, such that P(z ≤ z0) EQUAL 0.70.
Choose one answer.

a. .98

b. .53

c. .47

d. .81
Question 10
Marks: 1
W4-14. Suppose a uniform random variable can be used to describe the outcome of an experiment with outcomes ranging from 30 to 80. What is the mean outcome of this experiment?
Choose one answer.

a. 55

b. 60

c. 30

d. 80
Question 11
Marks: 1
W4-09. A machine is set to pump cleanser into a process at the rate of 7 gallons per minute. Upon inspection, it is learned that the machine actually pumps cleanser at a rate described by the uniform distribution over the interval 6.5 to 9.5 gallons per minute. What is the probability that at the time the machine is checked it is pumping more than 8.0 gallons per minute?
Choose one answer.

a. .7692

b. .25

c. .667

d. .50
Question 12
Marks: 1
W4-13. Suppose x is a uniform random variable with c EQUAL 40 and d EQUAL 70. Find the standard deviation of x.
Choose one answer.

a. σ EQUAL 8.66

b. σ EQUAL 31.75

c. σ EQUAL 1.58

d. σ EQUAL 3.03

Question 13
Marks: 1
W4-06. Suppose x is a random variable best described by a uniform probability distribution with c EQUAL 3 and d EQUAL 9. Find the value of a that makes the following probability statement true: P(3.5 ≤ x ≤ EQUAL 0.5.
Choose one answer.

a. 4

b. 1.2

c. 6

d. 6.5
Question 14
Marks: 1
W4-12. Which geometric shape is used to represent areas for a uniform distribution?
Choose one answer.

a. Triangle

b. Bell curve

c. Circle

d. Rectangle
Question 15
Marks: 1
W4-20. A physical fitness association is including the mile run in its secondary-school fitness test. The time for this event for boys in secondary school is known to possess a normal distribution with a mean of 440 seconds and a standard deviation of 50 seconds. Find the probability that a randomly selected boy in secondary school can run the mile in less than 325 seconds.
Choose one answer.

a. .5107

b. .4893

c. .0107

d. .9893
Question 16
Marks: 1
W4-11. The age of customers at a local hardware store follows a uniform distribution over the interval from 18 to 60 years old. Find the probability that the next customer who walks through the door exceeds 50 years old. Round to the nearest ten-thousandth.
Choose one answer.

a. 0.7619

b. 0.3600

c. 0.8333

d. 0.2381

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skateboard evolution

Use scholarly reviewed references, at least 3.

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rhetorical appeals

After reading the essay, write a response to the letter.  Your response should include one example of each: ethos, pathos, and logos. The response should be 2 pages, double spaced.

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History Post 1 – Mark Requested

History 108-Online

U.S. History 1877-Present

Prof. Shafer

Discussion Topic #1-A Two Part Discussion

 

Assignment Objective: In Part I, We will look at Primary Documents of that time period, to better understand issues and topics from their immediate perspective. In Part Two, we will include our own viewpoints, opinions and experiences on related topics of social and cultural change.

 

Part I:

To find your HST 108 Historical Documents, go to the “Resources & Docs” page. Once you click on that link, it will open in Adobe Reader. Once there, go to the Table of Contents and find the articles (the numbers 21-7 refer to Unit 21, Article 7). Click on the title of the article, and it will take you right there!

 

First Read:

 

Part 18, Article 9: Booker T. Washington’s Atlanta Exposition Address

 

1.  What is the tone of Washington’s speech?

 

2.  What line of work does Washington believe African-Americans should strive for?

 

3. What is Washington “willing” to accept in exchange for job opportunities?

 

4. How might this philosophy both benefit and impair African-Americans in the years to come?

 

Then Read

 

Part 17, Article 11: W.E.B DuBois-“Of Mr. Booker T. Washington & Others”

AND

Part 24, Article 4: Platform Adopted by the National Negro Committee

 

1. How do these articles depict B.T. Washington & their opinions about the future for African-Americans?

 

2. What is the tone of these articles in comparison to Washington’s speech?

 

3. What are the rights, etc. that Africans-Americans should have, according to these two articles?

 

Part II:

Then, based on your readings, experiences & opinions, here are some issues here that need to be addressed on the issue of social/cultural change:

How hard does one push for social change?

What style would be successful in the long run, gradual or immediate? Why?

Do considering such questions, thoughts and issues help you to appreciate/see how difficult dramatic cultural/social change can really be?

Is this still relevant now with a black president?

 

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Feminism

Write a research paper on how Charlotte Perkins Gilman makes a feminist statement in the short story “The Yellow Wallpaper” Include parenthetical citations where needed and a work cited page at the end.

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Canadian Jails Then and Now Corrections

Canadian Jails Then and Now Corrections

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political violence in latin america in 20th century

Political violence in Latin America in the twentieth century: During the 1970s and 1980s and even the 1990s, political violence resulted in the deaths of thousands of Latin Americans, mostly in the countries of Argentina, Chile, Uruguay, El Salvador, Guatemala, Nicaragua and Colombia. After this violent time, in some countries, truth commissions appointed to investigate the killings and torture. Is it important to preserve the collective memory in the history of these human rights violations, or forget it worth? Do you think that the preservation of the memory of these tragic events can prevent the repetition of the story? How should preserve this memory?

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