Maria is flipping a coin and spinning a spinner. The spinner has 4 equal sections labeled A-D. What is the probability the coin will land on heads and the spinner will land on the letter "A"?
1/8 or 0.125, or 12.5%
Define "theoretical probability."
It is the probability of what should occur. Uses math to determine the likely outcomes using the formula "want/all"
How likely is it that a coin is flipped and lands on tails?
Equally likely or 50%
The classic wood carousel at Carousel Park in Hampton, VA has 32 jumping horses and 16 standing horses. What is the probability of randomly selecting a jumping horse?
32/48 = 4/6 = 2/3
the results of a spinner being spun 100 times was: Red: 28
Green: 30
Blue: 23
Yellow: 19
Does the experimental probability match the theoretical? Is it close or not?
Theoretical probability would be 25/100 for each color (1/4)
The experimental did not match exactly, but it was close.
Define "experimental probability."
The probability of what actually occurs. The experiment is actually done (such as rolling a dice 200 times) and the results are tallied.
How likely is it that a number cube is tossed and lands on 3?
Unlikely or 1/6
Describe the difference between a simple event and a compound event
Simple event - One event, such as rolling one die or spinning a spinner one time.
Compound event - more than one event, such as rolling two dice, spinning a spinner and drawing a card, or selecting a girl with brown hair.
How likely is it that a number cube is tossed and it lands on 8?
never going to happen, 0%
Define "independent event."
When one event occurs and the item is replaced before the second event occurs.
How likely is it that a number cube is tossed and lands on any number 1-6?
Certain, 100%
Define "dependent event."
When one event occurs and that item is not replaced before the second event occurs.
How likely is it that a number cube lands on 2 and a coin lands on heads?
unlikely
1/6 * 1/2 = 1/12