Odds
Find the odds of rolling a number lower or equal to 3
1:1
a coin is flipped and lands heads up and then a face card is pulled from a deck of 52. Independent or Dependent?
Independent
The likelihood of an event occurring based on the actual results from an experiment.
experimental probability
9 blue, 3 red, 4 white marbles are in a bucket. The probability of pulling out a green marble is...
What is zero?
Identify n and r in the following problem: There are 35 boys trying out for football in the fall. The coach only has 20 spots to fill on the roster. How many ways can he fill the remaining spots?
n = 35,r =20
find the odds of not rolling a number greater than 3
1:1
You roll a 1-6 number cube twice. What is the probability that you roll a 3 on the first roll and a 6 on the second roll?
1/36
The complete set of all possible outcomes from a statistical experiment or random event.
sample space
If a team has a history of winning 70% of their games and there are 20 games in a season, how many games should they win this season?
What is 14?
Identify n and r in the following problem: The school board has seven members, the board must have a chairperson, an assistant chairperson, and a secretary. How many different sets of these officers can be formed from this board?
n = 7, r = 3
find the odds of rolling a number divisible by 3
1:2
Bob has a set of 10 colored markers in a backpack. One is yellow and one is blue. What is the probability Bob will reach into the backpack without looking and grab the yellow marker and then reach in a second time and grab the blue marker?
1/90
Two or more events where the occurance of one has no effect on the probability of the other occuring
independent events
You have 2 dice, you roll a 9. The probability for rolling a 9 is...
What is 1/9?
How many ways can you deal a five card hand from a standard deck if order doesn't matter?
2,598,960
if the odds of an even to occur are 9:11 what is the probability that this event will not occur?
11:20
A cooler contains 5 cans of diet cola, 6 cans of regular cola, and 4 cans of grape soda.
Janice randomly selects a can from the cooler. Then David randomly selects a can from the cooler. What is the probability that both Janice and David will select diet cola
2/21
The set of all outcomes in the sample space that are not A (not the event that you want to occur)
What is the complement?
How many different ways can 5 airplanes be arranged at 5 gates?
120
Compute C(16,10)
12,870
find the odds of rolling a number 1
1:5
Ms. Danch is picking cards from a deck. What is the probability that she picks 3 aces in a row if she replaces the cards?
1/2197
The ratio of the number of ways an event won't happen to the number of ways it will happen.
what is odds against
You have 1 die, you roll a composite number. The probability for rolling a composite number is...
What is 1/3?
To open your locker, you must dial a sequence of three numbers called the lock’s combination. Given that there are 40 numbers on a lock, how many different locker combinations are there?
59,280