Dice & Coins
The probability of a coin landing on “Heads”.
1/2 or 50%
A bag has 5 marbles and 5 red marbles. The probability of picking a blue one.
50% or 1/2
This word describes an event with a probability of 0.
Impossible
What is the total number of cards in a standard deck.
52 cards
Probability is always a number between which two values ?
The probability of rolling a 3 on a standard six-sided die.
1/6
A jar has 10 marbles: 7 are green and 3 are yellow. The probability of picking a yellow one.
3/10 or 30%
This word describes an event with a probability of 1.
Certain
The probability of drawing a Red card from a standard deck.
1/2 or 50%
To find a probability, you divide the “favorable outcomes” by what ?
The total number of outcomes.
The probability of rolling an even number (2, 4, 6) on a die.
1/5 or 50%
A spinner has 4 equal section: Red, Blue, Green and Yellow. The probability of landing on Red or Blue.
2/4 or 1/2
If the chance of rain is 20%, what is the chance that it won’t rain ?
80%
The probability of drawing an Ace (there are 4 aces in a deck).
4/52 *Simplified to 1/13
If you have a 1 in 10 chance of winning, What is your probability written as a decimal.
0.1
If you flip two coin, this is the probability they both land on Tails.
1/4
You have 3 red markers and 1 blue marker. If you pick one and keep it, how many markers are left for the second pick.
3
An event with a 50% chance is often described by this 3- word phrase.
Evenly likely
In a game of Rock, Paper, Scissors, the probability that you pick “Rock”.
1/3
If you flip a coin 100 times, you should expect it to land on Heads How many times ?
The number of total possible outcomes when you roll two dice.
36
A bag has 4 white balls and 1 black ball. What is the probability of picking the black ball.
1/5 or 50%
If an event is “Likely”, it’s probability must be between what two numbers ?
0.5 and 1 (50% and 100%)
The probability of drawing a Spade from a deck.
1/4 or 25%
If you have an “even chance” of winning a game (like a coin flip), what is the probability written as a fraction, a decimal, and a percentage ?
1/2, 0.5, and 50