AMS 5 Lecture Notes - Lecture 4: Statistic, Histogram, Central Tendency

23 views6 pages
chocolatemoose645 and 18 others unlocked
AMS 5 Full Course Notes
50
AMS 5 Full Course Notes
Verified Note
50 documents

Document Summary

Example: histogram for us household incomes from 2015. Example: starting with the table of income distribution we saw earlier, we first draw the horizontal axis . Using a density scale, we draw rectangles over each class interval whose areas equal the percentages of the families in those intervals. Note: the height of each rectangle is equal to the percentage of the observations in the corresponding class interval divided by the length of the class interval (the width of the rectangle) Next we divide all of the frequency numbers by their range. The vertical scale here is percent per i. e. , it is the relative frequency (percentage) divided by the width of the intervals (which in this case are measured in s). It"s always a good idea to label the axes. Why density scale instead of percentages/frequency scale: the size of the bars then would just be misleading.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related textbook solutions

Related Documents