Exploring Probability of Simple Events

What is the range of values that probability can take?

• -1 to 1

• 0 to 1

• 1 to 10

• 0 to 100

How is probability expressed?

• Only as a fraction

• Only as a decimal

• As a fraction, decimal, or percentage

• Only as a percentage

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

• 1/3

• 1/6

• 1/4

• 1/2

If a coin is tossed, what is the probability of landing on heads?

• 75%

• 100%

• 25%

• 50%

What is the probability of rolling a 2, 3, or 4 on a six-sided die?

• 1/6

• 2/3

• 1/3

• 1/2

What does it mean if an event is 'complementary'?

• It can occur with another event

• It has no relation to other events

• It occurs at the same time as another event

• It must occur if another event does not

What is the probability of not drawing a red marble from a bag containing blue, red, and green marbles?

• 30%

• 40%

• 70%

• 60%

If 30% of students have blue eyes, what percentage of students do not have blue eyes?

• 70%

• 30%

• 40%

• 60%

In a board game, if the chance of drawing a 'go back one space' card is 25%, what is the chance of not drawing this card?

• 50%

• 25%

• 75%

• 95%

What is the probability of choosing a vowel from a set of letters where vowels are 30% of the set?

• 30%

• 70%

• 50%

• 25%