Referring to the Fig. Irene spun the spinner shown 40 times.
Her results are shown in the table below.
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Outcome A B C D
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Frequency 13 10 8 9
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Find an experimental probability that the spinner lands on a
vowel. Express your answer as a percent and round off to the nearest
tenth percent if needed.
a. 25% c. 67.5%
b. 75% d. 32.5%