Geo Support Unit 8 Final PreFlashcard

Front

What is the probability of an event not occurring?

Back

P(not A) = 1 - P(A)

Front

Define probability in the context of a single event.

Back

Probability is the measure of the likelihood that an event will occur, calculated as the number of favorable outcomes divided by the total number of possible outcomes.

Front

What is the formula for calculating the probability of two independent events occurring in sequence?

Back

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

Front

If a die is rolled, what is the probability of rolling a 2?

Back

P(2) = 1/6

Front

If a die is rolled twice, what is the probability of rolling a 2 then a 5?

Back

P(2 then 5) = 1/6 * 1/6 = 1/36

Front

How do you calculate the probability of selecting a specific item from a group?

Back

P(selecting item) = Number of specific items / Total number of items

Front

What is the probability of selecting a blue marble from a bag containing 6 red, 5 blue, and 4 green marbles?

Back

P(blue) = 5/(6+5+4) = 5/15 = 1/3

Front

What is the combined probability of selecting a blue marble from two different bags?

Back

P(blue from Bag 1) * P(blue from Bag 2) = (5/15) * (2/9) = 2/27

Front

What is the total number of books Roy has on his shelf?

Back

Total books = 6 mystery + 5 science + 4 history + 3 adventure = 18 books

Front

What is the probability of selecting one adventure book and one science book from Roy's shelf?

Back

P(adventure and science) = (3/18) * (5/17) = 15/306 = 5/102