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Statistics
Statistics deals with collecting, organizing, and interpreting numerical data. An important aspect of statistics is the analysis of population characteristics inferred from sampling.
36,755 Questions
How many tons are there in 4900 pounds?
There are 2000 pounds in one ton (short ton). Therefore, 4900 pounds is equal to 4900/2000 = 2.45 tons.
What is the prabobility of rolling a die once and getting a eaqual number?
None, since there is nothing for the number to be equal to (or eaqual, even).
Do lists of dfferent lottery number combinations exist?
No, the lists would be too large and few people would wish to get one anyway.
What is 46 over 56 as a percentage?
Expressed as a percentage, 46/56 x 100 = 82.142857 recurring (that is, 82.142857142857...) percent.
What is the probability that your friend will pick a 15 or a 16 from 1 to 20?
The probability of picking a 15 or a 16 from the random set [1-20] is 2 in 20, or 1 in 10, or 0.1.
What is the definition of estimating regarding to math?
I think this is an important question. There are a number of similar words: estimate, estimating, estimator, and estimand.
An estimate is a non-exact result. If I calculate a value from a sample of data, I can state that the value is an estimate of a larger set of uncollected data (a population).
For example, if I take a sample of 20 numbers, and calculate the average, the number is exact. However, this average may be close to the mean of population. The average in mathematics is called an estimator of the population's mean.
I've included a related link. Don't worry if you don't understand a lot of it. It shows a lot of different types of estimators exists, and the subject is quite mathematical.
Estimating is the process of making an estimate.
An estimand is the particular value or attribute in the population which we want to know as well as we can. It is the objective of the study. I want to know how many years the average cat lives ("the estimand"). Obviously, I will never know this precisely, but I collect data, and make estimates of the estimand.
See related links.
What is wrong with saying 500 percent?
It is wrong because there is no such thing the highest "Percent" ever is 100%
you can get graded higher than that in school sure but that is because you have gotten extra credit
How do you do a box and whisker plot that has two nunmbers as the middle?
The median is a single number. If there are an even number of observations so that there are two "middle" numbers, then the median is the arithmetic average of the two (their sum divided by 2).
When there are two or more events that are independent then counting is usually simpler.
6
Σn
2
What is n??
Please answer
What is the probalility if heads up two times and tails up one time?
If it's a fair coin, the probability is 0.5 * 0.5 * 0.5 = 12.5%.
What kind of basic statistical graph shows trends?
LINE GRAPHS - is a common statistical graphs for expressing trends (that is, decreases / increases and how fast / slow) over a specified period of time.
What is the probability of choosing a jack or queen from a standard deck of 52 playing cards?
8 in 52
What is the probability of rolling a three or a six on a die then tossing a heads on a coin?
First event is to roll a 3 or 6 on a die, which gives you a probability of 2 out of 6.
Second event is tossing a heads on a coin, so a probability of 1 out of 2.
Since both chances are not related, you can multiply both chances:
2/6 times 1/2 = 1/6 = 0,166666...
