Determine whether the relation R on the set A is reflexive, irreflexive, symmetric, asymmetric, antisymmetric , or transitive. A = Z ; a R b if and only if│a–b│= 2.

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