What expression shows the relationship between the value of any term and n, its position in the sequence for the given sequence?

2, 1, 0, -1, -2, ...
A) 2n
B) n + 3
C) 2n + 1
D) -n + 3

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