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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
What is the probability of NOT drawing a spade from a regular deck of cards?
On a random draw of a single card, the probability is 3/4.
Working models of mathematics?
yes ,I knew it , u r loooser and also u have lost ur imaginery sense to make simple model
4 coins tossed together. What is the probability of getting 2 tails?
The probability of it is 37.5%. Since there are 16 possible outcomes. calculated by 2 to the power of 4. only 6 gives you the prefered results then it's a simple 6:16 ratio
What is a discrete probability and continuous probability?
On a Verification of Employment, How do you answer Probablity of continued employment?
The probability is quite low, BUT it isn't zero, and this is a very risky practice. Human nature being what it is, the intention not to break the hymen and not to release sperm is one of those intentions that lead to Hell (so to speak). Beyond that, there is the risk of various diseases that is not in the least diminished.
How many different combination can you throw with two dice?
Imagine that the dice are red one and a blue one. There are two answers to this. The first is 36 - this comes from the fact that the red die can give any result from 1 to 6, and those six numbers can each be matched with the six number which the blue die can give. However, to most people it doesn't matter if the red die gives 4 and the blue one gives three, - they see that as the same result as if the red die gave 3 and the blue one gave 4. Similarly to many people a red 5 and a blue 2 would be the same 'result' as a red 6 and a blue 1. Looked at this way there are 11 different 'results' which two dice can give - ranging from 2 to 12. So, the 'permutations' number 36 and the 'combinations' number 11.
you Add the highest number to the loswest number then......hold i be right back to give you the rest.
Ohhhh... Sooooo close...
Mean - simply the average. Add up all the numbers and divide by the total number of numbers you just added.
Median - Put the numbers in order from lowest to highest. The median is the MIDDLE number. If there are an even number in your list, and there is no 'middle' number, the median is the average of the two middle numbers.
Mode - the most common number in the list...
Example - here are the numbers: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
The mean is 5.5. (the sum of the numbers is 55, there are 10 numbers, mean = 55/10 = 5.5).
The median is ALSO 5.5. The middle two numbers are 5 & 6. The average of those two numbers is 5.5.
The mode - is... There is no mode. All the other numbers appear in the list the same number of times...
7 women in a group of 11 people
7/11
A dice is rolled six times in succession what is the probability of rolling six sixes?
The chance that one dice falls on 6 is 1 out of 6. The probability that dice falls twice in a row is 1 out of 6 and 1 out of 6, that is (1/6)(1/6)=(1/6)^2=1/36.
Hence the probability of six sixes in a row is(1/6)^6=1 out of 46,656.
What is the probability of heads on one flip of a coin?
you would think there is a 50% chnce of it landing on heads. However due to the weight of the metal on the picture on the coin it is actually about 5009/10,000 chance it will land on heads.
A single card is drawn from an ordinary 52-card deck Find the probability of getting a 7 of spades?
If it is drawn at random, the probability is 1/52.
The probability of a woman being chosen in this situation is 7/11.
The first American settlement was probably in?
The first settlement on American soil was in 1565 when the Spanish settled in what is now St. Augustine, FL.
What is the probability of drawing an 8 followed by a 2 from 11 numbers?
If the number 8 is PUT BACK INTO the group after the first draw, the probability of drawing an 8 then a 2 from 11 numbers is: 0.8% or eight-tenths of a percent [reason #1]
If the number 8 is REMOVED from the group after the first draw, the probability of drawing an 8 then a 2 from 11 numbers is: 0.9% or nine-tenths of a percent [reason #2]
Reason # 1 :
On the first draw, you have a 1 in 11 chance of drawing the 8 (9%) then on the second draw there is again a 1 in 11 chance of drawing the 2 (9%). So 9% x 9% = 0.8% or 8/10 % (or 0.008)
Reason # 2 :
On the first draw, you have a 1 in 11 chance of drawing the 8 (9%) then on the second draw you only have a 1 in 10 chance of drawing the 2 (10%). So 9% x 10% = 0.9% or 9/10 % (or 0.009) OR If the first ball is removed, the odds are 55 to 1.
Is probability always positive?
The value of a probability is a number between 0 and 1
So it's either positive and less or equal to one or null
What is the probability that a seven-digit phone number contains the number 7?
Best way to answer this question is by figuring out the probability of a phone number not containing the number 7. There are 9 other numbers that are not a 7, so odds of each digit not being a 7 is 90%. For a 7-digit number, calculation would be 0.9*0.9*0.9*0.9*0.9*0.9*0.9 or 0.9^7. This equals 47.8%, which means the odds of a phone number containing at least one 7 is 100% - 47.8%, which is 52.2%. But phone numbers do not begin with 0 or 1, so if we account for that, the odds of the first digit not being a 7 is 7/8, not 9/10. We replace the first 0.9 with 0.875, and the result is 53.5%. There are other scenarios we can take out, like numbers that begin with 555, but I'll just leave it at that.
Example of stratified random sampling?
In stratified sampling, the population to be sampled is divided into groups (strata), and then a simple random sample from each strata is selected. For example, a state could be separated into counties, a school could be separated into grades. These would be the 'strata'.
How do you put probability into a fraction?
All you need to do is put the number of tallies you have, over the amount you did it example-
1- llll/
2-llll Taylor threw a 2 sided dice nine times to see what the probability was.
For 1, he got 5, so the fraction would be 5/9
For 2 he got 4, so the fraction would be 4/9
