The table below summarizes survey results about voter turnout. A random sample of 150 registered voters were asked, "In the past 6 election years, how many times did you vote in the general election?" Fill in the row "Probability, P(x)." Enter probabilities as decimals (not fractions or percents). Round answers to four decimal places. Number of guesses, x 0 1 2 3 4 5 6 Frequency 3 10 38 57 27 13 2