PSC 205: Lab 4
PSC 205: Lab 4 Jerey Arnold February 10, 2012
Homework 2 Results
I
I
I I
I
Problem 1 was the most di cult. Review the distinction between a variable and its operationalization. Most people were not clear in their understanding of this distinction. income and age could be considered either continuous or discrete. partyid is ordinal. Some lost points on the last question because they didn't calculate a fraction or percent, but instead gave the count. Thoughts on why the income variable seems weird.
Probability Distribution I Suppose y is a discrete random variable with the following probability distribution
y 0 1 2 3 4 5 Create vectors for y and P (y ).
p (y ) 0.01 0.03 0.60 0.23 0.12 0.01
Probability Distribution
y
Homework 2 Results
I
I
I I
I
Problem 1 was the most di cult. Review the distinction between a variable and its operationalization. Most people were not clear in their understanding of this distinction. income and age could be considered either continuous or discrete. partyid is ordinal. Some lost points on the last question because they didn't calculate a fraction or percent, but instead gave the count. Thoughts on why the income variable seems weird.
Probability Distribution I Suppose y is a discrete random variable with the following probability distribution
y 0 1 2 3 4 5 Create vectors for y and P (y ).
p (y ) 0.01 0.03 0.60 0.23 0.12 0.01
Probability Distribution
y
