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Probability
The probability of a certain event is a number expressing the likelihood that a specific event will occur, expressed as the ratio of the number of actual occurrences to the number of possible occurrences. In mathematics, it is a measure of how often an event will happen and is the basis of statistics.
14,643 Questions
Is the random variable x equals 1 be stated that the random variable is discrete?
If x = 1 then X is not really a random variable but a constant.
What is the probability of landing on a number that is greater than 15?
It depends on the scenario. If you are at 16 and there are no backward moves, the answer is 0. If you are at 8 (or less), move according to 1 die and there are no jumps, again, the answer is 0.
The answer depends on:
- whether or not there are backward moves, jumps
- how many counter are in use
- how many numbers in each counter
- how the numbers on the counter(s) are applied to moves.
In summary, there is hopelessly insufficient information provided.
What is the probability that a fair coin lands with back to back heads in exactly four tosses?
-- There are (2 x 2 x 2 x 2) = 16 possible outcomes of four tosses.
-- There are three successful cases:
- H H T T
- T H H T
- T T H H
-- So the probability is 3/16 or 18.75% .
What is the probability of rolling either a 2 or a 5?
Well, literally speaking the answer wouls two out of six, or 2/6.
Butin simplest terms he answer would be 1 out of 3, or 1/3.
What is the difference between arterial and venal blood?
Arterial blood is blood that has picked up oxygen (oxygenated) in the lungs and is being circulated through the body. Venous blood is blood that has been circulated and is now de-oxygenated (low Oxygen content) and is being returned to the lungs to start the process over.
If you toss a coin 50 times about how many times would you expect it to land heads up?
n=50
success- Toss acoin 50 times
toss acoin once, S={H ,T}
p= 1/2
q= 1/2
p(x=x)={50cx(1/2)x(1/2)50-x
From a standard 52 card deck how many 5 card hands will have 3 spades and 2 hearts?
The maximum number of 5-card hands with 3 spades and 2 hearts is 4. The least is 0. There are 13 spade cards and if at least 3 spades are needed in a hand, only 4 hands can be formed.
What is the probability of tossing 2 heads and 2 tails with a coin tossed 4 times?
When h=head, t=tails
First toss: heads/tails (1h/1t)
Second toss: heads/tails (2h/1h1t*2/2t)
Third toss: heads/tails (3h/2h1t*3/1h2t*3/3t)
Fourth toss: heads/tails (4h/3h1t*4/2h2t*6/1h3t*4/4t)
In short, 1+4+6+4+1=16
Chances of getting 2 heads and 2 tails = 6/16 * 100% = 37.5%
What is experimental probability vs theoretical probability?
Theoretical probability is what should occur (what you think is going to occur) and experimental probability is what really occurs when you conduct an experiment.
Number Card Two to Ten: 36/52
Diamond: 13/52
(36/52+13/52)-9/52=40/52
10/13
It is neither. If you repeated sets of 8 tosses and compared the number of times you got 6 heads as opposed to other outcomes, it would comprise proper experimental probability.
Assuming the uniform continuous distribution, the answer is 29/49. With the uniform discrete distribution, the answer is 29/50.
If there are any grounds for assuming that the prices are Normally distributed (in fact, there are none), then a 90% confidence interval is (3.72, 10.04).
How many different ways can four of the letters in the word Baltimore be arranged?
9 x 8 x 7 x 6 ie 3024 different ways, assuming no duplication.
What has the author P B Watt written?
P. B. Watt has written:
'A few hints on colour and printing in colours'
How does one express the probability of an event and how does probability relate to science?
The probability of an event is usually expressed as a fraction between 0 and 1 or the corresponding percentage.
There are many processes in science that have some random element: from the Brownian motion of molecules in a fluid to genetics. The outcomes cannot be determined in advance: only the probabilities of the possible outcomes.
What is the probability of getting three or fewer heads on eight tosses of a coin?
It is 93/256 = 0.363 approx.
How do you create a problem that uses probability?
To decide whether or not to take an umbrella as you go out, you need to know the probability that it will rain.
To decide whether or not to take an umbrella as you go out, you need to know the probability that it will rain.
To decide whether or not to take an umbrella as you go out, you need to know the probability that it will rain.
To decide whether or not to take an umbrella as you go out, you need to know the probability that it will rain.
Emergency managemtn working group
What is the probability of drawing 3 cards that are all face cards?
The probability of drawing the first face card is 12 in 52. The probability of drawing the second is 11 in 51. The probability of drawing the third is 10 in 50. Thus, the probability of drawing three face cards is (12 in 52) times (11 in 51) times (10 in 50) or (1320 in 132600) or about 0.009955.
