Dice
If you roll 2 6 sided dice, what is the probability of rolling the numbers 3 or 4?
1/9
2/6 x 2/6
Jonathan has a winter jacket on due to the weather.
Is this an example of independent or dependent events?
Dependent Events
You draw a card from a standard 52 card deck and you replace it, then draw again. What is the probability that you will draw both diamonds?
1/16
1/4x1/4
Bella spins two spinners with four sections. The first one has the colors red, orange, yellow and green. The second one has the numbers 1,2,3,4. What is the probability you will spin a 1 and a red?
1/16
1/4x1/4
If you roll a die 2 times, what is the probability that you will get doubles?
1/6
6/6 x 1/6
Two coins are flipped at the same time.
Is this an example of independent or dependent events?
Independent events.
You draw one card from a pile of cards that are all queens (there are 4). What is the probability that you will get a queen of spades or queen of clubs?
1/2
1/4x1/4
Amy spins two spinners with 2 sections on it. The first one has the colors yellow and pink. The second has the numbers one and two. What is the probability that when she spins it, they will land on pink and 2?
1/4
1/2 x 1/2
If you roll 2 dice, what is the probability that you will get 2 odd numbers?
1/4
1/2 x 1/2
If working with independent events, would the denominator change?
No!
What is the probability that you will draw an ace out of a deck of 52 standard playing cards, don't replace it, then draw another ace?
1/221
4/52 x 3/51
Hannah spins two spinners, one with 2 sections, the other with 4 sections. The first one has the letters a,b,c, and d. The second one has numbers 1 and 2. What is the probability that on the first spinner it land on a, and the second spinner it lands on 1?
1/8
1/4 x 1/2
If you roll 2 dice, what is the probability of getting 2 5's
1/36
1/6x1/6
Cate scores a goal and it brings the score up in soccer.
Dependent Events.
You draw two cards from both two piles of standard 52 card decks. What is the probability that you will draw spades and hearts?
169/2704
A spinner has 4 colors on it. Red, Blue, Orange, and Purple. Another has the numbers 1,2,3,4. If you spin them, what is the probability that you will get a 1 and a blue?
1/16
1/4 x 1/4
You roll three number cubes, one at a time. What is the probability of getting a 1, a 2, and a 3?
1/36
3/6 x 2/6 x 1/6
A lasagna is tossed in the oven and cooked to perfection. No one eats it.
Is this an example of independent or dependent events?
Independent events
You draw two cards from both two piles of standard 52 card decks. What is the probability that you will draw a Kings or a hearts in a deck of 52 standard cards?
52/2704
A spinner with 4 sections is labeled 1-4. What is the probability of spinning a spinner twice and it lands on 3 or 4?
1/2
3/4 x 4/4
or list possibilities 12/16
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