Unit 6 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 does 'without replacement' mean in probability?

Back

'Without replacement' means that once an item is selected, it is not put back into the pool for subsequent selections.

Front

What does 'with replacement' mean in probability?

Back

'With replacement' means that after an item is selected, it is returned to the pool, allowing it to be chosen again.

Front

How do you calculate the probability of two independent events occurring?

Back

The probability of two independent events both occurring is the product of their individual probabilities.

Front

What is the formula for calculating the probability of an event?

Back

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

Front

If a bag contains 5 blue marbles, 4 red marbles, and 3 orange marbles, what is the total number of marbles?

Back

Total marbles = 5 (blue) + 4 (red) + 3 (orange) = 12 marbles.

Front

What is the probability of picking a blue marble from a bag of 12 marbles containing 5 blue marbles?

Back

Probability = 5 (blue) / 12 (total) = 5/12.

Front

In a fruit basket with 9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit, how many fruits are there in total?

Back

Total fruits = 9 (apples) + 3 (bananas) + 7 (oranges) + 5 (pears) + 1 (grapefruit) = 25 fruits.

Front

What is the probability of drawing two pears from a basket of 25 fruits if there are 5 pears?

Back

Probability = (5/25) * (4/24) = 1/30.

Front

What is the probability of drawing a blue marble followed by a purple marble from a bag containing 3 purple, 1 blue, and 1 yellow marble?

Back

Probability = (1/5) * (3/4) = 3/20.