Answered

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In one town, 30% of all voters are Democrats. If two voters are randomly selected for a survey, find the probability that they are both Democrats

Sagot :

clarch19

Answer:

9%

Step-by-step explanation:

we could use 3/10 to represent 30%

3/10 x 3/10 = 9/100 or 9%

The probability is 0.09.

What is probability?

Probability of a particular event occurring. (2): The ratio of the number of results in a comprehensive set of similarly possible results that generate a particular event to the total number of possible results.

Probability is a number of paths to success. The total number of possible results. For example, the probability of flipping a coin to win a head is 1/2 because there is one way to flip a head and the total number of possible results is 2 (head or tail). Write P (heads) = ½.

Assuming that the odds of choosing one voter from the city's population are equal, the probability that the first voter will be a Democrat is 30/100, and the probability that the second voter will be a Democrat ( 30/100) * (30 / 100- (1 / population) * (100)).

Now, if the city has a population of 100 (for example), the probability is no longer 30%, so (30/100) * (29/99) = 0.088

But if the city has a population of thousands, this is almost (30% * 30%) = 0.09.

Learn more about probability here: https://brainly.com/question/251701

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