Likelihood of an Event
An event with a probability equal to zero is ____.
(impossible, unlikely, even chance, likely, or certain)
Impossible
If I have 28 students in your class, what is the experimental probability that I will randomly call on you to answer a question? Write your answer as a percent rounded to the nearest tenth if needed.
3.6%
I flip a coin 10 times. It lands on tails 7 times. What is the experimental probability (as a percent) that the coin will land on tails?
70%
I spin a spinner that has sides labeled as 1, 2, and 3. I also flip a coin that has 2 sides. What is the compound probability that the spinner lands on side 2 and the coin lands on heads? Write your answer as a simplified fraction.
1/6
An event with a probability equal to one is ____.
(impossible, unlikely, even chance, likely, or certain)
Certain
The probability that it will rain tomorrow is 1/4. What is the probability that it will not rain tomorrow written as a percent?
75%
I flip a coin 10 times. It lands on tails 7 times. What is the experimental probability (as a percent) that the coin will land on heads?
30%
I spin a spinner that has sides labeled as 1, 2, and 3. I also flip a coin that has 2 sides. What is the compound probability that the spinner does not land on side 2 and the coin does land on heads? Write your answer as a simplified fraction.
1/3
An event with a probability equal to 0.5 is ____.
(impossible, unlikely, even chance, likely, or certain)
Even chance
I know that you are very likely to pass the math FSA. What would be a possible probability that you will pass the math FSA written as a decimal?
(0.5, 0.9, 1, or 1.4)
0.9
The probability that a student is late to school on a given day is 20%. There are 180 days in a school year. About how many days will they be late that year?
36 days
I have a bag filled with 3 quarters, 4 dimes, 3 nickels, and 2 pennies. What is the probability that I take 2 coins out of the bag at the same time and they will both be quarters. Write your answer as a simplified fraction.
1/22
An event with a probability close to zero is ____.
(impossible, unlikely, even chance, likely, or certain)
Unlikely
A spinner has 2 red sides, 2 green sides, and 1 blue side. After spinning it many times, it lands on red 394 times, on green 391 times, and on blue 215 times. What is the theoretical probability of landing on red? Write your answer as a percent rounded to the nearest tenth if needed.
40%
A spinner has 2 red sides, 2 green sides, and 1 blue side. After spinning it many times, it lands on red 394 times, on green 391 times, and on blue 215 times. What is the experimental probability of landing on red? Write your answer as a percent rounded to the nearest tenth if needed.
39.4%
A box contains 7 red pens and 3 blue pens. I randomly pick a pen from the box and throw it out (since it dried out). I then randomly pick a new pen from the box. What is the probability that both pens will be blue? Write your answer as a simplified fraction.
1/15
An event with a probability close to one is ____.
(impossible, unlikely, even chance, likely, or certain)
I roll a fair number cube with sides labeled as 1 through 6. Around how many times out of 300 rolls will it land on the side labeled as number 4?
50 times
At a pet store, 148 dogs have been adopted, 61 cats have been adopted, and 15 other animals have been adopted. What is the experimental probability that the next animal adopted is not a cat or dog? Write your answer as a percent rounded to the nearest tenth.
6.7%
A fair coin is flipped 3 times. What is the probability that the coin lands heads up once and lands tails up twice if the order doesn't matter? Write your answer as a simplified fraction.
3/8