Sample Spaces and Probability

Determine whether the event is impossible, unlikely, as likely as not, likely, or certain. You flip a fair coin and the coin will land heads up.

• impossible

• unlikely

• as likely as not

• likely

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

• 3/5

• 1/6

• 2/5

• 1/5

P(not A) = 

• 6/8

• 3/4

• 2/8

• 1/4

What is the set of all possible outcomes of a probability experiment?

• an outcome

• the sample space

• events

• a Venn diagram

If two dice are rolled one time, find the probability of getting a sum of 6

• 1/6

• 7/36

• 5/36

• 1/3

A probability experiment has two steps. There are two possible results for the first step, call them "A" and "B". If the result for the first step was "A", then there would be 4 possible results for the second step. If the result for the first step was "B", then there would be 15 possible results for the second step. How many possible outcomes are there for this experiment?

• 60

• 9

• 15

• 19

In a recent study, the following responses were obtained to the question, “Do you favor recycling in your neighborhood?” If a response is picked at random, what is the probability that it came from a male or that it indicated no opinion regarding recycling?

• 3/5

• 3/10

• 4/5

• 7/10

How many possible outcomes would there be if three coins were tossed once?

• 2

• 4

• 6

• 8

What type of probability uses a knowledge of sample spaces as opposed to experiments to determine the numerical probability that an event will occur?

• classical probability

• empirical probability

• conditional probability

• subjective probability

A child gets 20 heads out of 30 tosses of a coin. If he declared the chance of getting a head with that coin were 2/3, that would be an example of subjective probability.

• true

• false