Experimental Probability Tables

Probability Using a Spinner or Table

Experiment vs. Theoretical

Poll

How are you today?

• Doing Great

• I'm okay

• Not too good, it could be better

• I'm really feeling bad

Probability with a Spinner

• Count how many sections are in the spinner. This is the total

• Determine how many on the spinner is the result you need to find

• Possible needs/total sections on spinner

• Read the problem and look for words to pay attention to--not, and, or

• Enter the fraction in simplest form

• Write the way the question wants the probability if they want a fraction, decimal or percent

Probability

With Tables

How To Use Tables to Find Probability

• If a total is not given, find the total

• Find the frequency needed/total

• Reduce the fraction if needed.

• Pay attention to the question, look for not, or, and

• If you need a decimal, divide frequency and total

• To find a percent, move the decimal two places to the right. Ex: 0.50 = 50%

• If the word theoretical is used, the table is not used. You need to use what happens in one outcome for needed result.