A student picks a random letter from the word "cat" and a random letter from the word "meow." 1. How many outcomes are in the sample space?
2. What is the probability that a "c" is chosen?
3. What is the probability that a "w" is chosen?
4. What is the probability that a "c" and a "w" are chosen?

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.