Theoretical Vs. Experimental Probability

Presentation

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Mathematics

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7th Grade

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Practice Problem

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Medium

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CCSS

7.SP.C.5, 7.SP.C.7B

Standards-aligned

May Ponce

Used 158+ times

FREE Resource

5 Slides • 6 Questions

Theoretical Vs. Experimental Probability

Multiple Choice

Just to review: Probability can be written as ...

a fraction

a decimal

a percent

all of the above

What is probability?

Probability is how likely something will occur.
Think of probability of the chance something can or cannot happen.

Remember:

Probability is the chance something will happen on a scale from 0 to 1.

How to read the probability scale:

Impossible (0%): something cannot occur
Unlikely: there is a small percentage of occurring
Even Chance (50%): there is a 50% chance it can occur and 50% it cannot
Likely: there more of a chance something occurring than not
Certain (100%): it will happen

Multiple Choice

A likely chance event is closer to what number?

0.5

100

Theoretical vs Experimental Probability

Theoretical: is calculating the probability of it happening, what should happen.
ex. If you flip a coin six times, it should land on heads $\frac{1}{2}$ , 1 out of 2, or 50% of the time.

Experimental: is the results of an experiment, what did happen.
ex. you flip and coin and see how many times it lands on heads.

Multiple Choice

Experimental Probability is:

What Will happen

What actually happens

What should happen

What I think Happens

Multiple Choice

Theoretical Probability is?

What Should happen

What does happen

What Will Happen

What I want to Happen

Multiple Choice

Twelve candies are selected from a bag of Skittles. The results are shown in the table below. Using this experimental data, Samuel predicts that in a bag of 100 candies, 40 would be orange. How does his prediction compare to the experimental data below?

His prediction and experimental data match.

His prediction was lower than his experimental data.

His prediction was higher than his experimental data.

Multiple Choice

Sam has cards numbered 16 – 30 in a bag. He pulls one card without looking and replaces after each pull. What is the theoretical probability that he pulls a number lower than 20?

4/15

1/5

4/17

17/20

Theoretical Vs. Experimental Probability

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