Probability Test Review

The chance of flipping a tail on a normal coin is equally as likely as flipping a head.

• True

• False

The probability of an event is written as P(event).

• False
• True

Experimental Probability is:

• What Will happen 
• What actually happens
• What should happen
• What I think Happens

A classroom is arranged with 8 seats in the front row, 10 seats in the middle row, and 12 seats in the back row. The teacher randomly assigns seats to students as they enter the classroom. What is the probability that the first student who enters the classroom will be assigned a seat in the front row?

• 2/5

• 2/3

• 4/11

• 4/15

Jack tossed a coin three times. Which tree diagram shows all the possible outcomes of the coin landing heads up or tails up?

• 
• 
• 
• 

On a six-sided die what is the probability of not rolling a 3?

• 1/6

• 2/6

• 3/6

• 4/6

• 5/6

The probability of flipping a coin and landing on tails is 1/2.
If you flip the coin 100 times, approximately how many times could you expect to land on tails?

• 50 times
• 100 times
• 200 times

A ________ consists of 2 or more events.

• single event

• prediction

• compound event

• experiment

Use the spinner to find the probability.

P(2 or 3) =

• 1/4

• 3/8

• 2

• 2/4

If the spinner was spun 60 times, what is the probability of the spinner landing on green? (hint: set up a proportion)

• 3

• 6

• 9

• 12