A die is rolled. Find the probability of rolling a 1 or 2.
2/6 or 1/3
100
One integer is selected at random from integers 7 through 27. Find the probability that the number is even then a 9 after replacing the first
10/441
100
On a 6 sided dice, labeled 1-6, what is the probability of rolling a 2? Show me in a fraction.
1/6
100
In a file, there are 7 science papers, 9 English papers, and 8 history papers.
If you select two papers at random, what is the probability of getting science then a history paper from the file without replacing first paper?
56/552
or
0.10
or
10%
200
What does certain mean?
You are 100% sure.
200
Two coins are tossed. Find the probability that the coins show two heads or one tail and one head.
3/4 or 75%
200
A jar contains 15 pins: 3 are black, 8 are red and 4 are blue. What is the probability of picking a red and then a blue pin after replacing the first?
32/225
200
What is the probability of rolling an even number on a 6 sided dice labeled with the numbers: 1, 3, 5, 7, 9, 11? Show me in a fraction.
0/6
200
In a file, there are 7 science papers, 9 English papers, and 8 history papers.
If you select two papers at random, what is the probability of getting science then science paper from the file without replacing first paper?
42/552
or
.076
or
7.6%
300
What does mutually exclusive means?
2 events that can not happen at the same time
300
Two dice are rolled. Find the probability that the sum of the numbers is not greater than 5.
10/36 or 5/18 or 27.8 %
300
What is the probability that a randomly selected number from 1-10 is divisible by 3 and then divisible by 4 after replacing first?
6/100
300
What is the probability that a 12 sided dice will land with an odd number up, if the dice is labeled with the numbers 1-12 on it? Show me a fraction.
6/12
300
Two cards are chosen at random from a deck. What is the probability of getting a red Ace and then a black jack of diamonds without replacement?
2/2652
or
0.00075
or
0.075%
400
What does outcome mean?
the result of each trial of an experiment.
400
From a standard deck of cards.
Find the probability of getting a 2, a 5 or a face card.
20/52 or 10/26 or 5/13 or 38.5 %
400
A box contains 21 pink socks and 19 black socks. If two socks are picked at random one after the other with replacement, what is the probability that the first sock is pink and then black?
399/1600
400
There are 22 students in my homeroom. 10 of them are boys. If I were to pick a Popsicle stick, what is the probability, in fraction form, that I would pick a girl?
12/22
400
A Packet contains 23 shapes: 8 are cube, 7 are square and 8 are sphere.
What is the probability of picking a cube and then a sphere shape without replacing first?
56/506
or
0.11
or
11%
500
What does sample space mean?
The set of all possible outcomes of an experiment.
500
From a standard deck of cards (52)
P( black and number card)
18/52 or 9/26
500
A box contains 19 blue bells, 21 red bells and 11 grey bells. What is the probability of drawing a red bell first and then a grey bell with replacement?
861/1681
or
0.51
or
51%
500
A basketball player has made 96 free throws in his last 128 attempts. .
1. What is the probability he will be successful in his next attempt?.
1. 96/128 or 48/64 or 24/32 or 12/16 or 6/8 or 3/4
500
A box contains 100 cards numbered 1-100. They are taken at random and no replaced. Find the Probability
P (number < 6, then number > 90, then 41)