Basic Probability and Experimental Probability

Find the experimental probability:

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

P(1) =

• 3/5

• 1/6

• 2/5

• 1/5

Find the experimental probability:
Roll dice:  1, 3, 3, 4, 4
P(3) = 

• 3/5
• 1/6
• 2/5
• 1/3

Probability can be written as ...

• a fraction
• a decimal
• a percent
• all of the above

Possible results of an event

• outcomes

• compound event

• simple event

• probability

If you flip a quarter then roll a die, how many possible outcomes are there? (draw a tree diagram if you want.)

• 12

• 36

• 24

• 8

A bag has 3 red marbles, 2 blue and 4 yellow. What is the probability of pulling a red?

• certain

• impossible

• unlikely

• equally likely

A probability near 1 is _______.

• never going to happen

• very likely to happen

• probably never going to happen

• equally likely to happen

Find the probability of NOT landing on yellow if you spin the spinner.

• 1/8

• 7/8

• 1

• 7

Experimental Probability is:

• What Will happen

• What actually happens

• What should happen

• What I think Happens

The probability of it raining today is 30%. What is the probability that it will NOT rain?

• 30%

• 70%

• 100%

• 0%