Final Answer:
Compound event – an event that combines two or more simple events, using the word “and” or the word “or”.
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Explanation:
A compound event is when you put together two or more things that can happen. For example, rolling a die AND flipping a coin — that’s a compound event because it has two parts. Or maybe you pick a card OR roll a number — that’s also a compound event. The key words are “and” and “or”. If you see those words in a problem, you’re probably dealing with a compound event.
In your worksheet, you’ll see two big sections:
- One for “OR” events (called unions) — you ADD probabilities here.
- One for “AND” events (called intersections) — you MULTIPLY probabilities here.
But for now, just fill in the blank at the top:
“Compound event – [an event made of two or more simple events], using the word [and] or the word [or].”
That’s all you need to do right now — just write those words in the blanks!
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Teach the Topic:
What is a compound event?
It’s like making a sandwich — you don’t just use bread, you add cheese AND ham. In math, a compound event is when you combine two or more simple things that can happen.
Simple event = one thing (like rolling a 3 on a die).
Compound event = two or more things (like rolling a 3 AND flipping heads).
The magic words are “and” and “or”:
- “And” means both things must happen → Multiply the chances.
- “Or” means either one can happen → Add the chances (but watch out if they overlap!).
Easy Example:
You have a bag with 2 red marbles and 2 blue marbles.
What’s the chance of picking a red marble AND then a blue marble? That’s a compound event! You’d multiply the chances.
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Practice Task:
Fill in the blank:
A compound event is when you combine two or more simple events using the word ________ or the word ________.
Parent Tip: Review the logic above to help your child master the concept of compound events probability worksheet.
