Question

The spinner below shows 10 equally sized slices. Donna spun the dial 50 times and got the following results. Outcome White Grey Black Number of Spins 26 16 Fill in the table below. Round your answers to the nearest thousandth. (a) From Donna's results, compute the experimental probability of landing on grey.

Answer 1

Experimental probability:

P(desired)=number of times desired outcome occurs/total number of trianls

In the given case

`P(\text{grey)}=(16)/(50)=0.32`

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Theoretical probability:

P(desired)=number of desired outcomes/total number of outcomes

In the given case:

`P(\text{grey)}=(3)/(10)=0.3`

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In general, the more trials you do, the closer the experimental probability gets to the theoretical probability