Bivariate means 2 variables, so bivariate data is data that represents two different variables. Scatter plots are a way of representing bivariate measurement data. In this topic we will explore bivariate categorical data.
Today we started topic 15! 15-1 talks about different types of data. We have already talked about quantitative data (how much? how many?) versus qualitative data. Today we learned another way to talk about quantitative data is calling it measurement data. Another word for qualitative data is categorical data. Bivariate means 2 variables, so bivariate data is data that represents two different variables. Scatter plots are a way of representing bivariate measurement data. In this topic we will explore bivariate categorical data. Notes from class today are shown below. The practice from in class today is below. Today we started Unit 8 which kicks off with topic 14! In 14-1 we learned about scatter plots. A scatter plot is a graph made of dots that represent quantitative data. Quantitative data is data that answers a question like how many or how much. Money, measurements, and time are all common examples of quantitative data. Today we learned how to understand what the points on a scatter plot represent. Use the notes below (from class today) to help you with your homework tonight! Today we learned that we can use a two-way table to represent our bivariate categorical data. We practiced creating 2-way tables from data. We even made two-way tables that combined multiple surveys into one table (Example 3). We also used the data that was in a two-way table to help us fill in missing data in the table (Example 2). |
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