Lesson 30 QUIZ

A bag contains 16 socks. One sock is chosen at random. The probability of selecting a black, white, or gray sock is 1. The probability of selecting a white sock is 3/4. Selecting a gray sock is less likely than selecting a black sock.

There are 12 white socks.

• True

• False.

A bag contains 16 socks. One sock is chosen at random. The probability of selecting a black, white, or gray sock is 1. The probability of selecting a white sock is 3/4. Selecting a gray sock is less likely than selecting a black sock.

There are 2 black socks.

• True

• False.

A bag contains 16 socks. One sock is chosen at random. The probability of selecting a black, white, or gray sock is 1. The probability of selecting a white sock is 3/4. Selecting a gray sock is less likely than selecting a black sock.

There is at most 1 gray sock.

• True

• False.

A bag contains 16 socks. One sock is chosen at random. The probability of selecting a black, white, or gray sock is 1. The probability of selecting a white sock is 3/4. Selecting a gray sock is less likely than selecting a black sock.

It is impossible to select a red sock.

• True

• False.

A bag contains 16 socks. One sock is chosen at random. The probability of selecting a black, white, or gray sock is 1. The probability of selecting a white sock is 3/4. Selecting a gray sock is less likely than selecting a black sock.

It is likely that a black sock is selected.

• True

• False.

Monica and Brianne each draw one prize ticket at random from different boxes. Monica has a 20% chance of winning a prize. Brianne has a 1/10 chance of winning a prize. Is Monica or Brianne more likely to win a prize? Explain your reasoning.

• Brianne. 1/10 is 100% chance and greater than Monica.

• Monica. 20% is equivalent to 2/10 and 2/10 is greater than 1/10.

Decide if the probability in the statement is described by the likelihood of the event occurring. Choose True or False for the statement.

If the probability of an event is 0, then the event is certain.

• True

• False

Decide if the probability in the statement is described by the likelihood of the event occurring. Choose True or False for the statement.

If the probability of an event is 49/100, then the event is likely.

• True

• False

Decide if the probability in the statement is described by the likelihood of the event occurring. Choose True or False for the statement.

If the probability of an event is 1/6, then the event is very likely.

• True

• False

Decide if the probability in the statement is described by the likelihood of the event occurring. Choose True or False for the statement.

If the probability of an event is 15/30, then the event is equally likely as not.

• True

• False