probability/probability models

Front

What is experimental probability?

Back

Experimental probability is the ratio of the number of times an event occurs to the total number of trials or experiments conducted.

Front

How do you calculate the experimental probability of an event?

Back

Experimental probability = (Number of times the event occurs) / (Total number of trials)

Front

If a coin is tossed 10 times and results in 7 heads and 3 tails, what is the experimental probability of getting tails?

Back

3/10

Front

What is the theoretical probability of an event?

Back

Theoretical probability is the ratio of the number of favorable outcomes to the total number of possible outcomes.

Front

If a spinner has 10 equal sections and the number 3 is in one of them, what is the theoretical probability of spinning a 3?

Back

1/10

Front

If you spin a spinner with 6 equal sections numbered 1 to 6, what is the probability of spinning an even number?

Back

3/6 or 1/2 (the even numbers are 2, 4, and 6).

Front

What is the probability of an event that cannot happen?

Back

0 (zero probability).

Front

What is the probability of an event that is certain to happen?

Back

1 (one or 100% probability).

Front

If a spinner has 5 sections and one section is labeled 'D', what is the probability of not landing on 'D'?

Back

4/5 or 5/6 (if there are 6 total sections).

Front

In a bag of 24 animals, if there are 12 cats and 12 reptiles, what is the probability of selecting a cat or reptile?

Back

1 (since all animals are either cats or reptiles).