Contingency Tables · Exercise 18

Use the information in the to answer the next eight exercises. The table shows the political party affiliation of each of 67 members of the U.S. Senate in June 2012, and when they would next be up for reelection.
$$\begin{array}{ccccc}\text{Up for Reelection:}& \text{Democratic Party}& \text{Republican Party}& \text{Other}& \text{Total}\\ \text{November 2014}& \text{20}& \text{13}& \text{0}& \\ \text{November 2016}& \text{10}& \text{24}& \text{0}& \\ \text{Total}& & & & \end{array}$$

The events Republican and Up for reelection in 2016 are ________.

(a) mutually exclusive
(b) independent
(c) both mutually exclusive and independent
(d) neither mutually exclusive nor independent

OpenStax, Statistics · §3.4 Contingency Tables · Exercise 18