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Finding Experimental ProbabilitySelect "Spin" to start the spinner.PurplePerform an experiment with 50 trials. What is theexperimental probability of the spinner landing on red?OrangeBlueRedGreenResultRedGreenBluePurpleOrangeTotalFrequency000000SpinDoneIntro4 of 11Ok

User EricDXS
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1 Answer

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We can calculate an experimental probability by repeating a experiment or trial and computing the number of positive results.

In this case we have to perform N=50 trials.

A positive case is when we get Red in the spinner.

Then, if we get Red, for example, 5 times out of the 50 trials, we can calculate the probability as:


P(\text{red)}=\frac{\#\text{red}}{\#\text{trials}}=(5)/(50)=0.1

This is our estimation of the probability of getting Red in the spinner and has a value of P(red)=0.1=10%.

Answer: P(red)=0.1.

As it is a sample result, it can vary from sample to sample. This probability is an estimation of the real probability of getting red in the spinner.

User Afshin Mehrabani
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