Final answer:
To find the probability that a representative votes no on El Salvador aid, given that they vote yes to aid to Nicaraguan Contra rebels and yes to the M-X missile program, we need to calculate the conditional probability.
Step-by-step explanation:
To find the probability that a representative votes no on El Salvador aid given that they vote yes to aid to Nicaraguan Contra rebels and yes to the M-X missile program, we need to define the probabilities of each event separately and then calculate the conditional probability.
Let's assume that the probability of voting yes to aid to Nicaraguan Contra rebels is P(NC) and the probability of voting yes to the M-X missile program is P(MX). The probability of voting no on El Salvador aid, given that they vote yes to both events, can be calculated using the conditional probability formula:
P(No|NC and MX) = P(No and NC and MX) / P(NC and MX)
Since we don't have the actual values for P(No and NC and MX) and P(NC and MX), we cannot calculate the exact probability. Therefore, we cannot provide a rounded answer to two decimal places.