Probability Practice - Intro, Addition Rule, Two Way Tables

The addition rule...

• is used when looking for "and" probability

• takes care of double counting

• is the probability formula that always works

If you draw one card from a standard deck, what is the probability of drawing a 5 or a diamond?

• 2/52

• 4/52

• 4/13

• 26/52

Find the probability of choosing a card at random that is a spade OR a 7

• 1/52

• 1/13

• 4/13

• 17/52

If you roll one die, what is the probability of getting an even number or a multiple of 3?

• 1/3
• 2/3
• 1/2
• 1/6

What is the probability of spinning green or blue?

• 0
• 5/12
• 1/2
• 3/4

What word tells us to use the addition rule?

• or

• and

• because

• with

What is the probability of spinning a shade of blue?

• 1/5
• 2/5
• 3/5
• 4/6

If you choose from the following M & M colors, what is the probability that you choose blue?
5 green
6 yellow
8 blue
7 brown

• 8/26
• 4/13
• 8/25
• 1/3

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown
What is the probability of selecting a brown candy?

• 2/18
• 1/9
• 2/20
• 1/10

What is the probability of spinning an even number? 

• 16 2/3%
• 33 1/3%
• 50%
• 75%