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Frequency Distribution to Find the Probability

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Ages of Voters Frequency (In Millions)

18-20 years 4.4
21-24 7.7
25-34 20.2
35-44 28.7
45-64 43.4
65 years and over 24.6

Probability (voters is 65 years and older) round to four decimal places. Please explain step by step for I to understand and solve the next one.

Thank you

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