Day+Two

 ** I n Choosing Cereals, you conducted experiments and found the chances of particular events. You represented these chances as fractions or percents. **
 * Day 2: Kalvin’s Great Idea **

** The mathematical word for chance is PROBABILITY. **


 * A probability that you find by conducting an experiment and collecting data is called an EXPERIMENTAL PROBABILITY. **

 ** Number of *favorable trials/ ** ** Total number of trials **
 * Experimental Probability is represented by: **

** *favorable trials - trials where the desired result occurs **

**You can write “the probability of getting tails” as P(tails). For example, suppose there was an experiment where a coin was flipped 50 times. Of those 50 times, the coin landed on tails 32 times. The probability would be as follows:** ** P(tails) = number of tails/number of trials = 32/50 = 16/25 **

** Kalvin has come up with a different way of using probability to decide his breakfast cereal. __This time he tosses two coins__. If the coins match, he gets to eat Cocoa Blast. If the coins don’t match, he eats Health Nut Flakes. **

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