Academic 4 Probability Quiz

In a bag of marbles, 1/2 are red, 1/4 are blue, 1/6 are green, and 1/12 are yellow. You pick a marble without looking. The marble is most likely to be:

• Red
• Blue
• Green
• Yellow

Bruce flipped a penny 5 times. It landed on heads 2 times and tails 3 times. If he flips the coin a 6th time, what statement is true?

• It is more likely to be heads
• It is equally likely to be heads or tails
• It is more likely to be tails
• It is not likely to be tails

Cathy is playing a game with a set of 52 cards. The cards are different colors and each shows a number. The probability of randomly selecting a red card is 1/4. The probability of randomly selecting a 5 is 1/13. There is exactly one card in the deck that is red AND a 5.
If Cathy randomly selects a card, what is the probability that her card is either red OR a 5?

• 1/52
• 4/13
• 17/52
• 9/26

At this weekend's Falcons game, 15 out of the first 50 people who enter the stadium were NOT wearing hats. If this sample is representative of the 250,000 attending the game, about how many of them WILL be wearing a hat?

• 75000
• 175000
• 30000
• 150000

The spinner is spun once. Find the P(H)

• 1/8
• 1/2
• 1/12
• 1/10

The spinner is spun once. Find P(B or E)

• 1/4
• 1/5
• 1/8
• 1/10

P(Not K)

• 7/10
• 0
• 9/10
• 1

P(Not M)

• 1
• 0
• 1/2
• 1/10

Complete the line form left to right

• Impossible-0, Unlikely-25, Likely-75, Certain-100
• Certain-0, Unlikely-25, Likely-75, Impossible-100
• Impossible-100, Unlikely-25, Likely-75, Certain-0
• Impossible-0, Likely-25, Unlikely-75, Certain-100

What do we call Theoretical Probability?

• What Actually Happens
• What Should Happen