Probability of Simple Events

What do you call the measure or estimation of how likely it is that an event can occur?

• Event

• Probability

• Outcome

• Sample space

Tags

CCSS.7.SP.C.5

What is the formula used in finding the probability of an event E?

Tags

CCSS.7.SP.C.7B

If the probability is 1, then the event is ___ to happen.

• likely

• unlikely

• certain

• impossible

Tags

CCSS.7.SP.C.5

If an event will never happen, then its probability is ___.

• 0

• 1

• 2

• 3

Tags

CCSS.7.SP.C.5

You flip a coin.

What is P(heads)?

• 50%

• 1%

• 25%

• 100%

Tags

CCSS.7.SP.C.5

Earl is asked to choose a day of a week. What is the probability of choosing a day which starts with S?

• 1/7

• 2/7

• 3/7

• 1

Tags

CCSS.7.SP.C.7A

A spinner has 10 equal sections, of which 4 are orange. If you spin the spinner once, what is the probability that it will land on an orange?

• 2/5

• 1/5

• 1/10

• 5/2

Tags

CCSS.7.SP.C.7B

If a letter is chosen at random from the word PERSEVERANCE, what is the probability that the letter chosen is E?

• 1/5

• 1/4

• 1/3

• 1/2

Tags

CCSS.7.SP.C.7B

Cindy owns 7 t-shirts, 2 of which are gray. If Cindy randomly selects a t-shirt to wear, what is the probability it will be gray?

• 2/7

• 5/7

• 7/7

• 1/7

Tags

CCSS.7.SP.C.7B

A bakery has 14 desserts for sale, including 6 pieces of pie. What is the probability that a randomly selected dessert will be a piece of pie?

• 3/7

• 14/6

• 1/4

• 1/3

Tags

CCSS.7.SP.C.7B