A random sample of 10 subjects have weights with a standard deviation of 13.3531 kg. What is the variance of their weights? Be sure to include the appropriate units with the result.

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is