17. The set of all possible outcomes during the course of an experiment is called (a) a dependent variable (b) a random variable (c) a discrete variable (d) a sample space 18. What is the mathematical probability that a coin, tossed 10 times in a row, will come up "tails" on all 10 tosses? (a) 1 (b) 1/10 (c) 1/1024 (d) 1/4096