Basic probability

An unprepared student takes a 3-question true/false quiz in which he guesses the answers to all 3 questions. What is the probability he gets all 3 correct?

• 1/2

• 1/3

• 1/6

• 1/8

Tags

CCSS.HSS.CP.B.9

Roll a die one time. Find P(rolling a 4).

• 1/4

• 2/3

• 1/6

• 1/2

Tags

CCSS.7.SP.C.7A

Draw one card from a standard deck. Find P(ace of diamonds)

• 1/13

• 1/4

• 4/13

• 1/52

Tags

CCSS.7.SP.C.7B

What is the probability of spinning green?

• 0
• 1/4
• 1/2
• 3/4

Tags

CCSS.7.SP.C.7B

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

Tags

CCSS.7.SP.C.7B

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

Tags

CCSS.7.SP.C.7B

The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

Tags

CCSS.7.SP.C.7B

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

• 3/10
• 3/9
• 1/9
• 1/3

Tags

CCSS.7.SP.C.7B

How do you write 0.02 as a percent?

• 20%
• 200%
• 2%
• .02%

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

• 3/5
• 9/100
• 1/10
• 2/5