Exercises

Fun Class Activities:

1. Choose between $3$ brands of laptops, $6$ brands of iPads, or $4$ brands of tablets. How many choices do you have?
2. You can paint your room either $6$ colors or wallpaper it with $9$ styles. How many ways to decorate do you have?
3. You roll a $6$-sided die and then flip a $2$-sided coin. How many different outcomes can you get?
4. Choose $1$ of $4$ smartphone colors and $1$ of $7$ phone case styles. How many combinations do you have?
5. In your neighborhood, $50$ people own dogs, $40$ own cats, and $20$ own both. How many own a dog or a cat?
6. In your school, $15$ students play soccer, $10$ play basketball, and $5$ play both. How many play either sport?
7. In a tech company, $30$ employees know Java, $25$ know Python, and $10$ know both. How many know Java or Python?
8. You posted a short poll in your class about your classmates' favorite ice-cream flavor: chocolate, vanilla, or strawberry. The results were as follows: $31$ students preferred chocolate, $18$ preferred vanilla, $15$ preferred strawberry. Also, $13$ preferred both chocolate and vanilla, $12$ preferred both chocolate and strawberry, $9$ preferred both vanilla and strawberry, and $6$ preferred all 3 flavors. How many classmates do you have in that class?