0
Statistics
Statistics deals with collecting, organizing, and interpreting numerical data. An important aspect of statistics is the analysis of population characteristics inferred from sampling.
36,756 Questions
What is 3738564856478 times 64743547456374573564?
242,047,951,204,117,589,582,504,112,947,592
(242 nonillion, 47 octillion, 951 septillion, 204 sextillion, 117 quintillion, 589 quadrillion, 582 trillion, 504 billion, 112 million, 947 thousand and 592)
How much more likely is a car crash to happen on wet roads?
50/50 really if you think about it depends on the driver.
How do you convert grams per square yard to grams per square meter?
Multiply by the conversion factor 1 square yard equals 0.836127 m².
Yellowknife is a city in Northern Canada. It is the capital of the Northwest Territories aloing the shore of Great Slave Lake approximately 250 miles south of the Arctic Circle. Gold was found in the area in 1935.
Why you need to give importance in math?
Math is used in most every line of work. Being a musician, I use math all the time - note values, time signatures, etc. Hard to think of any occupation that doesn't use math in one form or another.
Probability of die being greater then 0?
assuming that it is a regular die with numbers 1-6 on them the probability is 1
Derivation of variance of non-central chi-square disribution?
The browser available here is not suited for the purpose. You will need to refer to a statistical site or even a book!
Besides no repeats, we also assume that the first digit can't be zero.
The first digit can be any digit except zero ... 9 choices. For each of those . . .
The second can be any one of 9 digits ... zero, and the 8 that were not the first one. For each of those . . .
The third can be any one of the 8 remaining digits. For each of those . . .
The fourth can be any one of the 7 remaining digits. For each of those . . .
The fifth can be any one of the 6 remaining digits. For each of those . . .
the Sixth can be any one of the 5 remaining digits.
The total number of possibilities is: (9 x 9 x 8 x 7 x 6 x 5) = 136,080 .
If there were no restrictions, then 6 digits could make 1,000,000 different numbers.
The restrictions have eliminated 86.4 percent of them.
It's possible, however it would be impracticable, because the reason for such statistical profile would be futile or useless. And yet, it was done by Ethnologue, proving it was not futile.
I've included a couple of links. Statistical theory can never tell you how many samples you must take, all it can tell you the expected error that your sample should have given the variability of the data.
Worked in reverse, you provide an expected error and the variability of the data, and statistical theory can tell you the corresponding sample size.
The calculation methodology is given on the related links.
How many 4 digit permutations and combination can be made from 46913?
Given the individual digits: 4, 6, 9, 1, and 3,
the number of 4-digit permutations is (5! / 1!) = (5 x 4 x 3 x 2) = 120 .
The number of combinations is [ 5! / (1!4!) ] = 5 .
How are the Composite Indexes made?
The government indexes are made by averaging the behavior of the different indicator series that make up each composite series.
What is the mean for the family of 12 8 6 5 4 people?
Mean is just another word for average. To find the mean you add each number together: 12+8+6+5+4=35. Then you take that sum and divide it by how many families there are. In our case there are 5. So 35/5 which equals 7.
The mean of these families is 7.
