Problems about complements:
1. a. If I spin 25 pennies, and 14 land heads up, what percentage of heads did I get?
b. What percentage tails did I get?
2. a. If I roll a normal die 20 times, and I get "6" 5 times, what percentage of the rolls were 6?
b. What percentage of the rolls were less than 6?
3. I have some red, blue and green beads in a bag. I did the following experiment 20 times: I took out three beads, and recorded if at least two were the same color. 70% of the time at least two were the same color. What happened the other 30% of the time?
4. I rolled two dice, and recorded whether I got the same number on both dice or not. 15% of the time, I got the same number on both dice. What happened the other 85% of the time?