Statistics and Probability

What is the probability of selecting a red marble after pulling a purple marble from a bag containing 3 red, 5 green, 3 blue, and 7 purple marbles?

• 1/5

• 3/17

• 1/6

• 2/9

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

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

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

• Probability (P) = Number of outcomes / Total number of events.

• Probability (P) = Number of successful trials / Total number of trials.

What is the probability of rolling an odd number on a 6-sided die?

• 1/3

• 1/4

• 1/2

• 2/3

What is the total number of outcomes when rolling two dice?

• 24

• 30

• 36

• 12

What is the probability of getting a sum of 7 when rolling two dice?

• P(sum of 7) = 1/4

• P(sum of 7) = 1/6

• P(sum of 7) = 1/3

• P(sum of 7) = 5/36

If a die is rolled, what is the probability of rolling a number greater than 4?

• 1/2

• 1/3

• 2/6

• 3/6

What is the probability of not rolling a 3 on a 6-sided die?

• 1/2

• 1/3

• 5/6

• 2/3

What is the concept of independent events in probability?

• Independent events are events where the outcome of one event does not affect the outcome of another.

• Independent events are events that always occur together.

• Independent events are events that are mutually exclusive.

• Independent events are events that have a combined probability of zero.

What is the concept of dependent events in probability?

• Dependent events are events where the outcome of one event affects the outcome of another.

• Dependent events are events that occur at the same time without influencing each other.

• Dependent events are events that are completely unrelated and independent of each other.

• Dependent events are events that can only happen in a specific order.

What is a sample space in probability?

• A sample space is the set of all possible outcomes of a probability experiment.

• A sample space is a collection of events that cannot occur simultaneously.

• A sample space is the average of all outcomes in a probability experiment.

• A sample space is a method to calculate probabilities.