5.1 Probability

What is sample space?

• a process with an uncertain result

• a possible result of an action

• a list of all possible outcomes of an event

• a single outcome or group of outcomes

What is the sample space?

• 6 bears

• orange, green, red, white, yellow

• unlikely

• 2 red bears

Which shows the sample space for flipping two coins?

• H, T
• HH, HT, TH, TT
• HH, TT
• Dime, Nickel

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11

• 5/6

• 1/3

• 5

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

• 3/5

• 1/6

• 2/5

• 1/5

Probability is ...

• the chance that some event will occur.
• a game that involves coins.
• a guarantee.

What is the probability of spinning green?

• 0
• 1/4
• 1/2
• 3/4

What is the probability of rolling a cube and having it land as a six?

• 1/6
• 5/6
• 1/3
• 1/2

What is the probability of rolling a cube and having land as an odd number?

• 3/4
• 1/3
• 1/2
• 2/5

What is the probability of spinning the spinner and having it land on RED?

• 33%
• 50%
• 12%