Presents the steps to follow in designing a study in statistics and explains what makes a good statistical question.

Find expected value based on calculated probabilities. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

The mathematics resource investigates basic probability. Students learn about the topic through notes and examples. The tutorial consists of practice exercises to check for comprehension of the concept.

A description of the standard, analyze decisions and strategies using probability concepts, in addition to sample questions and aligned resources.

The probability resource investigates compound events. Students learn about the topic through notes and examples. The tutorial consists of practice exercises to check for comprehension of the concept.

A complete CCSS Grade 7 Mathematics course that includes interactives in every lesson, plus videos, hands-on activities, and questions with immediate feedback. Every lesson also has specifically chosen 'Related Modalities' that teach the...

Determine if a quadratic or exponential model fits a data set better, then use the model to make a prediction. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

The concept of modeling sequences of random events using states and transitions between states became to known as Markov Chains. Introduction to Markov chains. Created by Brit Cruise.

Picture graphs are a fun way to display data. This article reviews how to create and read picture graphs (also called pictographs).

Bar graphs are a nice way to visualize categorical data. This article reviews how to create and read bar graphs.

The correlation coefficient r measures the direction and strength of a linear relationship. Calculating r is pretty complex, so we usually rely on technology for the computations. We focus on understanding what r says about a scatterplot.