The spinner above is spun 8 8 times, and the results are listed below. 1 1 , 3 3 , 7 7 , 2 2 , 3 3 , 3 3 , 8 8 , 5 5 What is the experimental probability of spinning an even number?
Question
The spinner above is spun 8 8 times, and the results are listed below.
1 1 , 3 3 , 7 7 , 2 2 , 3 3 , 3 3 , 8 8 , 5 5
What is the experimental probability of spinning an even number?
Solution
To find the experimental probability of spinning an even number, we first need to identify the even numbers in the results.
The even numbers listed are 2 and 8.
Next, we count how many times these even numbers appear in the results.
The number 2 appears once and the number 8 also appears once.
So, the total number of times an even number appears is 1 (for 2) + 1 (for 8) = 2 times.
The total number of spins is 8.
Therefore, the experimental probability of spinning an even number is the number of successful outcomes (spinning an even number) divided by the total number of outcomes (total spins).
So, the experimental probability is 2 (even numbers) ÷ 8 (total spins) = 0.25 or 25%.
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