Independent and Dependent Probability

Front

What is independent probability?

Back

Independent probability refers to the likelihood of an event occurring that is not affected by the outcome of a previous event.

Front

What is dependent probability?

Back

Dependent probability refers to the likelihood of an event occurring that is affected by the outcome of a previous event.

Front

What is the probability of tossing a coin four times and getting tails each time?

Back

1/16

Front

If you draw a green Skittle™, replace it, and then draw another green Skittle™, is this independent or dependent probability?

Back

Independent

Front

Which event is not a dependent event? Picking 2 students from a group of 20 or picking an earring, replacing it, then picking a 2nd earring?

Back

Picking an earring, replacing it, then picking a 2nd earring.

Front

What is the probability of spinning red on a spinner and picking a red marble from a bag with 2 red marbles, 3 green marbles, and 3 blue marbles?

Back

1/16

Front

True or False: Dependent probability happens when the first item is replaced, causing the total outcomes to increase by 1.

Back

False

Front

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

Back

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

Front

What is the formula for calculating the probability of two dependent events occurring?

Back

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