Easy Math with Ms. Jera

Topic | Basic Operations on Integers

Topic | Quadratic Equation by Factoring

Topic | Probability of an Event

Topic | Sampling Techniques

Choosing your sample? Don’t stress! 😅

🎲 Lottery = random pick
📏 Systematic = every 5th, 10th, etc.
🏫 Stratified = each group represented
📦 Cluster = choose whole groups
🔄 Multi-stage = step by step
🛋️ Convenience = easiest to reach
🚶 Accidental = whoever happens to be available
🎯 Purposive = chosen on purpose
✅ Quota = fixed number per group

Topic | Parameter and Statistic

📌 Parameter = number that describes the ENTIRE population
📌 Statistic = number that describes a SAMPLE

Topic | Population and Sample

👥 Population – the whole group you want to study
🎯 Sample – a smaller group taken from the population

Know the difference, and statistics will make sense! ✔️

Topic | Order of Operations