Pratice+Test+1B

Pratice+Test+1B - 1. What is the scale of measurement for...

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

View Full Document Right Arrow Icon
1. What is the scale of measurement for the variable “depth of a lake?” 2. Do cumulative frequencies make sense with every scale of measurement? Please explain. 3. Does a large median imply large range? Does a large range imply a large median? Please explain. 4. Here is part of a histogram. The vertical scale is a density scale (percent-per-unit/relative- frequency-per-unit) What proportion of the graph is found between 60 and 76? [Keep the majority of the blank space empty for the answer to question 8]. 5. Which is more affected by extreme scores, the second central moment or the third central moment? Explain in the space above. 6. Estimate the standard deviation for the below distribution. 7. Depending on how you define error, the mean, the median, or the mode can be the best guess. How is error defined if the median is the best guess? Use the empty space above this question for your answer. 8. Calculate the second moment around the origin for the data 1, 3, 3, 9. Note: The question is
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 12/12/2010 for the course ECON ECON 15A taught by Professor Rajendram.patel during the Fall '10 term at UC Irvine.

Page1 / 2

Pratice+Test+1B - 1. What is the scale of measurement for...

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