Question

use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. the probability that a voter chosen at random is in the 18 to 20 years old age range is. (round to three decimal places as needed.)

Explanation:

Step1: Calculate total number of voters

Add up all the frequencies: \(4.4 + 8.7+20.3 + 23.2+51.2+28.3\)

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Step2: Calculate probability

Probability \(P=\frac{\text{Frequency of 18 - 20}}{\text{Total frequency}}\). The frequency of 18 - 20 is \(4.4\) and total frequency is \(136.1\). So \(P=\frac{4.4}{136.1}\approx 0.032\)

Answer:

\(0.032\)