Spring 2024 Computer Science 458 Introduction. 1/31/2024

Image of the Day

xkcd Discussion

Spurious Correlations

Decision Problem of the Day

The experimenter then asks: “Which card(s) must be turned over to check whether the rule applies? "

https://pollev.com/slade You may also download the app to your phone. Use the "slade" poll id.

Canvas Quiz of the Day (need daily password)

Click for today's quiz.

Also, you will earn class participation points for posting to Discussions (not Ed Discussions.)

Monday's Questions [with Answers]

• Question 1. You are given a choice: (a) get $900 for certain, or (b) 90% chance to win $1,000 and 10% chance for nothing. What do you choose? [95%, 5%]

• Question 2. You are given a choice: (a) lose $900 for certain, or (b) 90% chance to lose $1,000 and 10% chance of losing nothing. What do you choose? [18%, 82%]

• Question 3. Linda is thirty-one years old, single, outspoken, and very bright. She majored in philosophy. As a student, she was deeply concerned with issues of discrimination and social justice, and also participated in anti-nuclear demonstrations...The respondents are asked to rank in order of likelihood various scenarios: Linda is (1) an elementary school teacher, (2) active in the feminist movement, (3) a bank teller, (4) an insurance salesperson, or (5) a bank teller also active in the feminist movement. [51%, 49%]

• Question 4. An individual has been described by a neighbor as follows: “Steve is very shy and withdrawn, invariably helpful but with very little interest in people or in the world of reality. A meek and tidy soul, he has a need for order and structure, and a passion for detail.” Is Steve more likely to be a librarian or a farmer? [72%, 28%]

• Question 5. Participants were asked to choose between two treatments for 600 people affected by a deadly disease. Treatment A was predicted to result in 400 deaths, whereas treatment B had a 33% chance that no one would die but a 66% chance that everyone would die. This choice was then presented to participants either with positive framing, i.e. how many people would live, or with negative framing, i.e. how many people would die.

  Choice one: Either saves 200 lives, or a 33% chance of saving all 600 people, 66% possibility of saving no one. [62%, 38%]

  Choice two: 400 people will die or a 33% chance that no people will die, and 66% probability that all 600 will die. [40%, 60%]

• Question 6.

  Write down the last 2 digits of your Social Security number. Now consider whether you would pay this number of dollars for items whose value you do not know, such as wine, chocolate and computer equipment. Finally, how much are you willing to pay? (Enter two numbers) Write down the last 2 digits of your Social Security number. Now consider whether you would pay this number of dollars for items whose value you do not know, such as wine, chocolate and computer equipment. Finally, how much are you willing to pay? (2 #s)

  72
  30
  Certainly not - it depends on the equipment/what it is completely completely. If I had to throw out a number, 10
  24. I am willing to pay because it is not much money but I can get a chance to win computer equipment or even more valuable items. I think this worth the money. I am willing to pay no more than 30 for this.
  12. Yes I am willing to pay this number of dollars for items whose value I do not know as I feel like 12$ is a relatively low amount of money in terms of risk. I am willing to pay 50$ for something I don't know the value of.
  ** (> 80); WINE: yes (depending on the wine); CHOCOLATE: no; COMPUTER EQUIPMENT: yes; WILLING TO PAY: wine: $99 (depending on the wine); chocolate: $30; computer equipment: $99
  26, wine yes chocolate no, computer equipment yes. depends on how much i care about the item
  46, not wine or chocolate, but possibly computer equipment. Not interested in the first 2.
  0
  im willing to pay 100 for the surprise.
  i would
  69
  92. I would not pay this number. I think I would not pay anything for an item i do not know. Or a low amount, like 10 dollars.
  11. Yes, I would be willing to pay for the items whose value I do not know because this is not a huge amount of money and it is highly likely that the item is above this amount of money. I would be willing to pay 11 dollars.
  51, 51
  24, 10
  0
  12 Sure 12
  20
  24
  09; Yes; 10
  27 5
  86, no, 45
  00, yes
  48, 1
  0.01 dollar
  89, nah. 1
  01, yes. 10.
  0.01
  10 20
  17, 25
  i dont think i will be using my SSN but i can use 50, i would pay 50 for the box
  20
  20
  77, 5
  16
  I wouldn't, but I would pay 10$
  I do not have an SSN
  No I would not. I would pay max 20
  20
  46, 15
  58 05
  56, 12
  00, 00
  71 10
  76 25
  76 20
  25 (yes, I would be willing to pay), 30
  84
  50, No, 10
  57, 20
  $19 yes. $50 max.
  23
  13, yes i would pay
  97, no, $40
  22, yes. $25
  12 most likely would pay for unknown item, probably willing to pay up to $25
  09. 08.
  

Administrivia

$ pip install -U yahooquery
...
$ python
Python 3.11.7 (main, Dec 18 2023, 00:00:00) [GCC 13.2.1 20231011 (Red Hat 13.2.1-4)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import yahooquery
>>> yahooquery.__version__
'2.3.7'