GCSE Probability Recap

On the probability scale, what is the likelihood of it being daylight in Horndean at midnight?

• Likely

• Unlikely

• Impossible

• Certain

What is the probability of spinning green?

• 0
• 1/4
• 1/2
• 3/4

What is the probability of spinning red?

• 0
• 5/12
• 1/2
• 3/4

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

Find the probability of drawing a 10 from a standard deck of 52 cards.

• 1 out of 52
• 13 out of 52
• 26 out of 52
• 4 out of 52

A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?

• 3
• 1/10
• 3/10
• 30%

Victor picks a card at random. Without putting the first card back, he picks a second card at random.

• Dependent
• Independent

Clara picks a marble at random, puts it back, and then picks another marble at random.

• Dependent
• Independent

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.5

CCSS.7.SP.C.7

The probability based on frequency of outcomes during an experiment

•  experimental probability
• fundamental counting principle
• mutually exclusive event
• dependent event

Tags

CCSS.HSS.MD.A.4