Probability

What is the probability of flipping a coin 7 times and having it land on heads 6 of those times?

• 5.5%
• 10.9%
• 14.3%
• less than 1%

What is the probability of flipping a coin 20 times and having it land on heads 12 of those times?

• 12.0%
• 7.6%
• 40%
• 10.8%

The dealer deals the first 5 cards in a deck to you first in a hand of poker.  You see the 1st 4 cards are a 10, 7, 2 and A. What is the possibility of getting at least one pair on the 5th card? (Another 10, 7, 2 or A)  Remember you started out with 52 cards, but now there are only 48 cards left.

• 25%
• 6.25%
• 23%
• 12.5%

In Blackjack, the dealer deals you the first two cards, what is the probability of getting a ace for both cards?

• less than 1%
• 7.7%
• 3.5%
• 2.1%

What is the probability of getting a heads only once out of 3 coin flips?

• 1/2
• 1/3
• 1/8
• 3/8