Show:
Fundamentals
Basic Probability
Counting
Combinations/Permutations
Independent/Dependent
100
Which of the following cannot be a probability? 0, 1, -2, .025, 3/5
-2
100
In a standard deck of cards, find P(green card).
0 or impossible
100
Ben has 10 shirts and 5 pairs of pants. How many different outfits can Ben have?
50
100
A child asks a pet store owner for any 2 pet mice from a cage containing 15. How many different pairs of mice are possible? Is this a combination or permutation?
Combination
100
You roll a die two times. Find P(even, then 1)
1/12
200
What is the probability of an event that is certain to occur?
1
200
You roll a die. Find P(4 or 5).
1/3
200
How many different combinations are possible from 8 pen colors and 12 different colored notepads?
96
200
In how many different orders can you play 4 cds?
24
200
You spin a spinner with four even parts(blue, red, green, yellow) and draw a card. Find P(blue, then Ace).
1/208
300
What is the probability of an impossible event?
0
300
There is a box of 12 colored pencils, 5 blue, 4 red, and 3 green. Find P(blue).
5/12
300
How many different cars can you get from 5 models, 3 colors, and 4 different engines?
60
300
You have six choices of sandwich fillings. How many different sandwiches could you make by choosing two of the six fillings?
15
300
You pick a marble from a bag containing 1 green marble, 4 red marbles, 2 yellow marbles, and 3 black marbles. You replace the first marble and then select a second one. Find P(yellow, then black).
3/50
400
On a multiple choice test with five possible answers for each question, what is the probability of answering the question correctly if you make a random guess?
20%
400
You have a bag of 24 marbles. 8 are blue, 9 are red, 5 are green and 2 are yellow. Find P(Red or Yellow).
11/24
400
There is a school lunch special where you can pay $5 for a sandwich, a drink, and a snack. There are 5 different sandwiches, 4 different drinks, and 4 different snacks. How many different combinations of sandwich, drink, and snack can you have?
80
400
6 people walk into a fast food restaurant at the same time. How many different ways can the first 3 be served?
120
400
Seven girls and five boys volunteer to represent their class at a school assembly. The teacher selects one name and then another from a bag containing the twelve students names. Find P(2 girls).
7/22
500
If a couple had 3 children, what is the probability that among the three children, there are exactly 2 girls?
3/8
500
In a standard deck of cards (52 cards). Find P(King or Queen or 7 of hearts).
9/52
500
I tylenol placebo headache 15 65 no headache 17 3 If 2 people are randomly selected, find the probability that they both had a headache?
18
500
In a class of 18, how many different ways can the class elect a president, vice president, treasurer, and secretary?
73440
500
A box contains 5 green marbles, 5 blue marbles, and 3 orange marbles. You draw one marble, do not replace it and then draw another marble. Find P(green, then blue).
15/91