Probability w/Tree Diagrams - Midterm Review

Front

What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Front

What is a tree diagram?

Back

A tree diagram is a visual representation used to show all possible outcomes of an event, branching out from a starting point.

Front

How do you calculate the probability of an event?

Back

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

Front

What does 'without replacement' mean in probability?

Back

'Without replacement' means that once an item is selected, it is not returned to the pool of items for subsequent selections.

Front

What is the probability of ordering fries at Bob's Burger Shop if 350 out of 500 orders included fries?

Back

Probability = 350/500 = 70%.

Front

If there are 3 red and 7 blue counters, what is the probability of picking a blue counter first?

Back

Probability = 7/10.

Front

What is the probability of ordering fries and a coke if 275 out of 500 orders included fries and coke?

Back

Probability = 275/500 = 55%.

Front

What is the probability of picking a red counter after picking a blue counter without replacement?

Back

Probability = 3/9 = 1/3.

Front

What is the probability of an event that is certain?

Back

The probability of a certain event is 1.

Front

What is the probability of an event that is impossible?

Back

The probability of an impossible event is 0.