Name________________________

PROBABILITY & PREDICTIONS #1

Directions: You can use probability & proportions to make predictions about the future. First, figure out the probability of a single event. Then set up and solve a proportion to calculate how many times that event is likely to happen in a certain number of trials. Use the spinner below, along with you knowledge of coins and regular number cubes (dice), to predict the events listed below.

EVENT PROPORTION PREDICTION

1) If you flip the coin 100 times, how many tails? 50 tails

2) If you spin the spinner 20 times, how many 5’s? __________________

3) If you roll the cube 30 times, how many 3’s? __________________

4) If you flip the coin 32 times, how many heads? __________________

5) If you spin the spinner 50 times, how many 5’s? __________________

6) If you roll the cube 60 times, how many 6’s? __________________

7) If you flip the coin 1,000 times, how many tails? __________________

8) If you spin the spinner 75 times, how many 2’s? __________________

9) If you roll the cube 120 times, how many 4’s? __________________

10) If you flip the coin 250 times, how many tails? __________________

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