Read and write the following whole numbers in numerical and word form. 984773
STAT 110: Notes for Week of 9/13/16 Chapter 10 o In order to describe data, you must figure out if it is quantitative or categorical. o Quantitative Variable: a variable that measures something already in numerical form, ex. inches of a piece of paper, weight of a person, IQ, etc. o Categorical Variable: measures something that needs to be put into categories and/or given numerical value, ex. favorite color, ethnicity, current feelings, etc. o Distribution of a variable: tells what values of a variable occur and how often they occur, ex. 20 people like the color blue, 0 people like the color orange, etc. Distributions can be described through tables, graphs, or numerical summaries. o Frequency table: gives the count of how many times a value appears in a distribution, ex. 0 people like the color orange. o Relative Frequency: gives the proportion (often a percentage or fraction) of how many times a value appears in a distribution compared to the total amount of values, ex. 0 people out of 200 students in this class like the color orange, or 0%. o Roundoff Errors: occurs in tables when values are rounded off. This means that when you add all of the values together, you will not reach the true sum. This usually occurs in distributions with large values. o Pie Chart: used for categorical variables. This type of graph shows the amount of