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Model Thinking by Scott E. Page w8_3 #110

Open Spica99 opened 10 years ago

Spica99 commented 10 years ago

2013-11-30 (60min) Coursera open course: Model Thinking by Scott E. Page Start from 10.07.2013, will end on 12.16.2013 Link: https://class.coursera.org/modelthinking-005/class/index;

Quiz 7: Sections 13-14 HelpThe due date for this quiz is Tue 3 Dec 2013 2:00 AM PST. Section 13 covers Path Dependent outcomes. Some key concept are Urn Models, PATH vs. PHAT dependence, public works and externalities, and increasing returns. Be ready to do some math on urn processes such as Polya and Balancing.

Section 14 covers Networks. There are a few questions that require you to calculate path length, degree, and so on, and some that require you to think about the meanings of these numbers.

There fewer multiple choice questions on this quiz than usual, and more that ask you to input numbers. When asked for a numeric answer, please write as "12" for example, instead of "twelve". And don't include any punctuation.

Good luck! In accordance with the Coursera Honor Code, I (Spica99) certify that the answers here are my own work. Question 1 In the Polya Process, what is the probability of drawing a blue ball on each of your first two draws? (Assume that you start with one blue ball and one red ball in the urn.) 1/2, 1/4, 1/3, 2/3

Question 2 In the Balancing Process, what is the probability of drawing a red ball on each of your first two draws? (Assume you start with one red ball and one blue ball in the urn.) 1/3, 1/2, 1/6, 1/4

Question 3 In the Polya Process, what are the odds of picking twenty red balls in a row? (Assume you start with one red ball and one blue ball in the urn.) 1/4, 1/21, 1/20, Approx.1/1000,000

Question 4 What is the primary reason that the number and combination of public projects in existence might be a path dependent outcome? Please answer in one word, no period. Answer for Question 4

Question 5 Using the Polya Process, you pick 10 balls from an urn. What is the diversity index of the distribution of possible outcomes? Please give a numeric answer. Answer for Question 5

NILESHLEENA commented 4 years ago

Question 1 In the Polya Process, what is the probability of drawing a blue ball on each of your first two draws? (Assume that you start with one blue ball and one red ball in the urn.)

rohit335 commented 4 years ago

i want to know answers