We're going to flip a coin 100 times and record the result of each flip. The list "heads, tails" is:

a sample space.

an event

an outcome.

a trial.

I used a mathematical model to determine that there is a 49.5% chance of heads, 49.5% chance of tails, and 1% chance of landing on edge when I flip a certain coin. I am using:

empirical probability.

theoretical probability.

extreme probability.

classical probability.

Four of my students are performing experiments. Each student will flip some coins to compute the empirical probability of getting heads. The theoretical probability of gettign heads is exactly 50%. Alex flips n=5 coins, Betty uses n=50, Casey has n=500 and David has n=5000. Which statement is most likely to be true?

David's empirical probability will be the closest to 50% of the four students.

David will see fewer heads than the other three students.

David will see exactly 2500 heads.

Of the four students, David will see the closest number of heads to the expected value.

I have a sack of shells, 3 red, 5 white and 7 black. If I draw one shell randomly, what is the probability that it is white?

1

3

1

2

1

5

5

7