In 1931, the Legislature selected the cactus wren to be the official state bird of Arizona.
In this series we’re going to take a look at the important role statistics play in our everyday lives, because statistics are everywhere!
This course is based on the 2018 AP Statistics curriculum and introduces everything from basic descriptive statistics to data collection to hot topics in data analysis like Big Data and neural networks.
Today we’re going to finish up our unit on data visualization by taking a closer look at how dot plots, box plots, and stem and leaf plots represent data.
Today we’re going to talk about measures of central tendency – those are the numbers that tend to hang out in the middle of our data: the mean, the median, and mode.
So today we’re going to talk about how to identify good and bad survey questions, and how groups (or samples) are selected to represent the entire population since it’s often just not feasible to ask everyone.