Chapter 12 - Probability

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 successful outcomes) / (Total number of trials).

Front

What is the experimental probability of tossing tails if a coin is tossed 10 times and results in 7 heads and 3 tails?

Back

3/10.

Front

What is the probability of an event that has equally likely outcomes?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes).

Front

If a spinner has 4 equal sections numbered 1 to 4, what is the probability of landing on 2 or 3?

Back

1/4.

Front

What does it mean for two events to be mutually exclusive?

Back

Two events are mutually exclusive if they cannot occur at the same time.

Front

Are picking an ace and picking a ‘3’ from a deck of cards mutually exclusive events?

Back

True.

Front

If a survey shows 10% cheese, 30% pepperoni, 25% sausage, and 5% ham as favorite pizza toppings, what percent have another opinion?

Back

30%.

Front

What is the total probability of all possible outcomes in a probability experiment?

Back

The total probability of all possible outcomes is always 1.

Front

What is the formula for calculating the probability of independent events?

Back

P(A and B) = P(A) * P(B).