Chapter 16, Problem 15E

A coin is tossed 10 times in a row. The observation is how the coin lands $\left(H\text{ or }T\right)$ on

each toss (see Exercise 7). Write out the event described by each of the following

statements as a set.

1. $E_1$: “none of the tosses comes up tails.”

2. $E_2$: “exactly one of the 10 tosses comes up tails.”

3. $E_3$: “nine or more of the tosses come up tails.”