Calculating simple probability

Which shows how to calculate probability?

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Calculating probability of simple events: What is the probability of rolling a 3 on a fair six-sided die?

• 1/4

• 1/2

• 1/6

• 1/3

Calculating probability of simple events: If a bag contains 5 red marbles, 3 blue marbles, and 2 green marbles, what is the probability of picking a red marble?

• 3/10 or 3/10

• 2/10 or 2/10

• 5/10 or 1/2

• 4/10 or 4/10

Calculating probability of simple events: If a spinner is divided into 8 equal sections and stops on a section numbered 5, what is the probability of this happening?

• 2/9

• 1/5

• 1/8

• 3/8

A spinner has 6 equal parts. 4 parts are blue and 2 are green. What is the probability that it stops on a green part?

Probability can be written as a 

• fraction
• decimal
• percent
• all of the above

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7
• 5/49
• 5/7
• 10/49

You flip a coin.

What is P(heads)?

• 50%

• 1%

• 25%

• 100%

What is the probability of the spinner shown landing on a number greater than 2 but less than 7?

• 1/4

• 3/8

• 1/2

• 1/8

In a standard deck of 52 cards, what is the probability of drawing a heart or a spade?

• 1/2

• 1/4

• 1/3

• 1/16