#AP SAT (Digital) Probability & Data Analysis: Your Night-Before Guide 🚀

Hey there! Let's get you prepped and confident for the AP SAT (Digital) Math section. This guide is designed to be your quick, go-to resource, focusing on the most important stuff you need to know about probability and data analysis. Let's make sure you're ready to ace it!

#Probability Fundamentals

#Core Concepts and Definitions

• Probability: Likelihood of an event, ranging from 0 (impossible) to 1 (certain). Think of it as a scale of how likely something is to happen. 📏
• Sample Space: All possible outcomes of a random experiment. It's the entire set of possibilities. 🎲
• Event: A subset of the sample space, meaning one or more outcomes. It's what you're interested in. 🎯
• Calculating Probability: P(Event) = (Favorable Outcomes) / (Total Possible Outcomes). This assumes each outcome is equally likely.
• Complement of an Event (A'): All outcomes not in A. P(A') = 1 - P(A). It's everything else! 🔄

#Probability Rules for Multiple Events

• Addition Rule (for 'OR'): P(A or B) = P(A) + P(B) - P(A and B). Use this when you want the probability of either A or B happening. ➕
• Multiplication Rule (for 'AND', Independent Events): P(A and B) = P(A) × P(B). Use this when A and B don't affect each other. ✖️
• Multiplication Rule (for 'AND', Dependent Events): P(A and B) = P(A) × P(B|A). Here, P(B|A) is the conditional probability. Use this when A does affect B...