Understanding Probability with Dice

What is referred to as an 'event' in probability?

• The total number of outcomes

• The outcome of a die roll

• A specific result we are interested in

• Rolling a die

How do you calculate the probability of an event?

• Total outcomes minus favorable outcomes

• Possible outcomes divided by favorable outcomes

• Favorable outcomes plus possible outcomes

• Favorable outcomes divided by possible outcomes

Tags

CCSS.7.SP.C.7B

What term is often used in textbooks to describe an occurrence in probability?

• Possibility

• Result

• Event

• Action

What does the 'sample space' represent in probability?

• The formula used to calculate probability

• All possible outcomes of an event

• The desired outcome of an event

• The number of times an event occurs

How many possible outcomes are there when rolling a standard die?

• 4

• 7

• 5

• 6

What does the numerator in a probability fraction represent?

• The number of times an event is repeated

• The total number of outcomes

• The number of outcomes that do not match our desired event

• The number of outcomes that match our desired event

Tags

CCSS.7.SP.C.7A

What is the first step in calculating the probability of an event?

• Writing down the sample space

• Determining the favorable outcomes

• Identifying the event

• Calculating the total number of outcomes

Tags

CCSS.7.SP.C.7A

What is the probability of rolling a two with a standard die?

• 1/4

• 1/5

• 1/6

• 1/7

Tags

CCSS.7.SP.C.7A

What is the probability of rolling a four or a five with a standard die?

• 1/6

• 1/3

• 2/5

• 2/6

How can the probability of an event be simplified?

• By performing a mathematical operation

• By increasing the sample space

• By reducing the fraction to its simplest form

• By adding more favorable outcomes

Tags

CCSS.7.SP.C.7B