So we can substitute this value in for p to estimate the standard deviation of the sampling distribution of this statistic right over here. Assuming that the proportion of men and women are the same. Or the proportion that will vote for the candidate. So let's do that. It's going to be the square root of 2 times p, which is 0.6165 times 1 minus p. Divided by 1,000. Let me make sure I get it. 2 times 0.6165, that's that p right there, times 1 minus p divided by 1,000.