Quantitative Data and Probability explanations, examples, practice problems. Ready? Let's do this.
Expected Value
Today we're at the county fair. We've got a giant turkey leg, an even bigger funnel cake, and a mission. This year, we're not just here to ride the rides and see the sights. We need to get our Gran...
Summary Statistics
In statistics, we want to gather data about the real world and then analyze it. What we don't want is to have to recite a long-winded spiel whenever someone asks us for our results. We want some wa...
The Normal Distribution
Our humps, our humps, our lovely data humps. When we go out, collect data, and graph it, it often comes out looking something like this.Well, we usually graph our data with a hot pink pen and doodl...
Populations and Samples
It's time we sat down and had The Talk, about where data comes from. When someone is very interested in a topic, the stork comes along and gives them a little bundle of data for them to analyze as...
Sampling Distributions
On February 2nd, we left Shmoop headquarters in the morning to collect some very special data. This was the day we would finally settle the question: how much wood can a woodchuck chuck?We randomly...
Reading Results
We've covered a lot of ground here lately, but in fact we've only scratched the surface of ways to gather and analyze data. There are all kinds of distributions, formal tests, and complicated jargo...
In the Real World
Statistics is more than a pile of numbers cluttering up your notebook or computer screen. It's all about data taken from the real-life sources, and it's used to make important decisions all the tim...