Experimental Probability

Experimental Probability

Learning Standards:

NC.7.SP.6 Collect data to calculate the experimental probability of a chance event, observing its long-run relative frequency. Use this experimental probability to predict the approximate relative frequency.

Learning Targets:

●Explain how experiments can help determine the likelihood of future events.

●Describe the likelihood of events using the words impossible, unlikely, equally likely as not, likely, or certain.

Open Ended

What is simple (theoretical) probability?

Multiple Choice

The spinner shown is spun once. What is the probability of getting a number less than 10?

Write the answer as a fraction, percent, or decimal.

• 3/4

  0.75

  75%

• 1/4

  0.25

  25%

• 1/2

  0.50

  50%

• 1/3

  0.33

  33%

• 1/5

  0.20

  20%

​Number Cube

Roll a number cube and record the outcome in the table. Repeat the experiment 20 times.

Based on your experiments, write the letter that matches the likelihood of each event happening on your next roll

1. Rolling a 1

2. Rolling a number less than 10

3. Rolling an even number

4. Rolling a number greater than 10

Open Ended

Roll a number cube and record the outcome in the table. Repeat the experiment 20 times.

Once you are finished, type done

• ​Define experimental probability

• ​Define outcome

Vocabulary

​Coins

~Toss a coin and record the outcome in the table. Repeat this experiment 10 times

~Toss 2 different coins and record the outcome in the table. Repeat this experiment 15 times

Based on your experiments, write the letter that matches the likelihood of each event

1. Tossing 1 coin and landing on heads facing up

2. Tossing 2 coins that both land heads up

3. Tossing 2 coins. One lands on heads and one lands on tails

Open Ended

~Toss a coin and record the outcome in the table. Repeat this experiment 10 times

~Toss 2 different coins and record the outcome in the table. Repeat this experiment 15 times

Once you are finished, type done

​Random Letters

The letters TENNESSEE are in a bag. Pick a letter from the bag and record the outcome. Then put the letter back in the bag. Repeat this experiment 20 times

Based on your experiments, write the letter that matches the likelihood of each event happening on your next pick

Open Ended

The letters TENNESSEE are in a bag. Pick a letter from the bag and record the outcome. Then put the letter back in the bag. Repeat this experiment 20 times

Based on your experiments, write the letter that matches the likelihood of each event happening on your next pick

Once you are finished, type done

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Spinner

Spin the spinner and record each outcome in the table. Repeat this experiment 20 times

Based on your experiments, write the letter that matches the likelihood of each event on your next spin.

Open Ended

Spin the spinner and record each outcome in the table. Repeat this experiment 20 times

Based on your experiments, write the letter that matches the likelihood of each event on your next spin.

Once you are finished, type done

Home

Open in new tab

Copy link

Multiple Choice

Theoretical Probability is ____

• data from our experiment

• our prediction

Multiple Choice

Experimental Probability is ______

• data from our experiment

• our prediction

Multiple Choice

Sarah hit the ball 3 times out of the 8 times.

What is the experimental probability (as a percent) that she will hit the ball next?

• 22.5%

• 37.5%

• 45%

• 3%

Multiple Choice

Dylan made 15 out of 35 free throws.

What's his experimental probability as a simplified fraction?

• 3/7

• 15/35

• 1/2

• 5/7

Multiple Choice

Tammy rolled a die five times.

Here is what she got on her five rolls: 1, 3, 3, 4, & 4

Find the experimental probability:

P(3) =

• 3/5

• 1/6

• 2/5

• 1/3