4th Grade Retake Probability

What is the probability when something is certain?

• 0

• 1/4

• 1/2

• 1

What is the probability of spinning an odd number?

• 1/2

• 2/3

• 1/6

• 0

Find the probability of rolling greater than a 1 on a single die.

• 6/6
• 5/6
• 4/6
• 1/6

What is the probability of landing on a B?

• 3/8

• 1/8

• 2/8

• 5/8

A bag has 10 blue marbles and 2 red marbles. Which word best describes my probability of picking out a RED marble?

• impossible

• unlikely

• equally likely

• likely

A bag has 10 blue marbles and 7 red marbles. Which fraction matches my probability of picking out a RED marble?

• 7/10

• 10/7

• 7/17

• 10/17

The letters A, B, E, I, P, O, and U are in a hat. What word best describes the probability I pick a vowel out of the hat?

• impossible

• unlikely

• likely

• certain

Challenge:

There are 2 red crayons, 4 yellow crayons, 7 green crayons, and 5 blue crayons in a box. What are the odds of picking out a GREEN or YELLOW crayon?

• 6/12

• 7/18

• 11/18

• 13/18

What is the probability of flipping a coin and getting tails?

• 1/2
• 1/3
• 1/4
• Never, Tails never fails.

What is the probability of spinning a prime number? 

• 1/2
• 2/3
• 1/6
• 0