Holiday Theoretical Probability with "or" and "and".

A tree has 12 ornaments:

• 5 red,

• 4 green,

• 3 gold.

If an ornament is randomly selected, what is the probability it is red or green?

(a)  

A store has 20 rolls of wrapping paper:

• 7 red,

• 6 green,

• 4 gold,

• 3 blue.

What is the probability of selecting a roll that is gold or blue?

(a)  

A box contains 18 snowflake decorations:

• 6 glittery,

• 5 frosted,

• 4 plain,

• 3 metallic.

What is the probability of selecting a decoration that is frosted or glittery?

(a)  

A collection has 16 stockings:

• 8 are red,

• 4 are green,

• 3 are striped,

• 1 is plain.

What is the probability of selecting a stocking that is striped or green?

(a)  

A box contains 25 candy canes:

• 10 are red-and-white,

• 8 are green-and-white,

• 7 are multicolored.

What is the probability of selecting a candy that is multicolored or green-and-white?

(a)  

A tray has 20 cookies:

• 7 are chocolate chip,

• 6 are sugar,

• 4 are gingerbread,

• 3 are peanut butter.

What is the probability of selecting a cookie that is sugar or peanut butter?

(a)  

A box contains 24 string lights:

• 10 are red,

• 8 are green,

• 6 are multicolored.

What is the probability of selecting a string light that is red or green?

(a)  

A wrapping station has 28 gift boxes:

• 10 are red,

• 8 are green,

• 6 are gold,

• 4 are silver.

What is the probability of selecting a box that is gold or silver?

(a)  

At a party, there are 30 hats:

• 12 are gold,

• 10 are silver,

• 5 are black,

• 3 are multicolored.

What is the probability of selecting a hat that is black or multicolored?

(a)  

At a gathering, 20 people are wearing holiday sweaters:

• 7 have snowmen,

• 6 have reindeer,

• 5 have Christmas trees,

• 2 have penguins.

What is the probability of selecting someone with a sweater featuring snowmen or reindeer?

(a)