Experimental and Theoretical Probability

What is the probability of spinning red?

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Theoretical Probability is?

• What Should happen

• What does happen

• What Will Happen

• What I want to Happen

Theoretical Probability is ____

• data from our experiment

• our prediction

Theoretical P(Green or Red)

• 2/6

• 1/5

• 2/5

• 1/5

Neil tossed a 6-sided die 90 times. The results of his tosses are recorded in the table below: Which number has the experimental probability of 13/90?

• 1

• 2

• 3

• 4

• 5

The arrow of this spinner was spun 60 times. On 45 out of 60 times, the arrow landed on a section labeled with a multiple of 4. What was the experimental probability of the arrow landing on a section labeled with a multiple of 4?

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Theoretical P(4)

• 3/6

• 1/6

• 1/2

• 4/6

Theoretical P(Yellow)

• 2/8

• 3/8

• 2/3

• 1/4

Theoretical P(Even #)

• 1/3

• 1/2

• 3/6

• 2/6

Theoretical P(Orange)

• 2/9

• 1/4

• 3/10

• 3/10