10ProbStatHW1Sol

10ProbStatHW1Sol - SIEO 3600.002 Introduction to...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
SIEO 3600.002 Solutions Assigment #1 Introduction to Probability and Statistics January 29, 2010 Prof. Chenxin Li Page 1 of 3 Solutions Assigment #1 1. Discuss whether these data are categorical or quantitative. (a) Zip codes: Categorical data. (b) Eye colors in a demographics survey: Categorical data. (c) Colors in a human vision study: Quantitative (measure of wavelength, frequency etc), Categorical (blue, black, yellow etc.) 2. The following is a sample of the answers to the difficulty level question in the class survey: 3; 3; 3; 2; 4; 4; 3; 5; 4; 3; 3; 3; 2; 5; 3; 3; 5; 4; 2; 3; 4; 4; 4; 4; 3; 4; 5; 4; 3; 4; 1 where 1 stands for easy while 5 stands for hard. Summarize these data in a frequency table and a bar plot. Figure 1: Frequency table problem 2. Level of Difficulty Frequency 1 1 2 3 3 12 4 11 5 4 3. The following are the estimated oil reserves, in billions of barrels, for four regions in the western hemisphere. United States
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/02/2010 for the course STAT 1234 taught by Professor Yi during the Spring '10 term at Columbia.

Page1 / 3

10ProbStatHW1Sol - SIEO 3600.002 Introduction to...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online