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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

What is a easy definition of an independent variable?

Independent variables, namely a quantity change will not cause except the dependent variable other than the amount of change. Only by the independent variables to a physical quantities to express, it is by the function relation is correct

The dependent variable, a quantity change will cause in addition to other than the dependent variable amount change. Put the dependent variables as independent variable, is to determine the relationship between a big physical quantities.

Variables, it is to point to have no fixed value, can change the number

Constant DuoZhong type, and every type is there is a data type, have integers, bytes, characters, floating point, enumeration, etc.

How many 4 digit combinations are there for the numbers 0-5 without having the same numbers twice?

There are 360 possible combinations.

Where n = how many numbers are available to choose from and r = the number chosen each time then:

Number of permutations = n! / (n - r)!

= 6! / (6 - 4)!

= (1 * 2 * 3 * 4 * 5 * 6) / (6 - 4)!

= 720 / 2! = 720 / (1 * 2) = 720 / 2 = 360.

(Note: this formula only applies where the order of the numbers is important and repetition is NOT allowed.)

How do you convert grams per square meter to kg per cubic meter?

Grams are a measure of weight, a square meter is a measure of area, and a cubic meter is a measure of volume. These are not comparable.

What was the most popular name in 2001?

The most popular name in 2001 was Emily for the girl names and Jacob or Jakob for boy names.

How many four digit numbers are possible which do not contain 3 or 6?

The answer is 3,584.

The first digit of the four-digit number can be one of seven figures: 1,2,4,5,7,8 or 9 (if it is 0, then you don't have a four-digit number!) Each of the remaining digits can be one of eight figures: 1,2,4,5,7,8,9 or 0.

The number of possible combinations is therefore 7 x 8 x 8 x 8 = 3,584.

What are the odds of rolling 6 of any specific number using 6 dice in one roll?

The odds of rolling any specific number in one roll of one die is 1 in 6. Each die is unrelated, so the odds of rolling the same specific number using six dice in one roll is 1 in 6 to the 6th, or 1 in 46,656.

If a die is rolled 375 times and 5 occurs 80 times what is the probability of rolling a 5?

The probability of rolling a 5, based on the information given, is 80/375 or 16/75. Your problem describes a relative frequency approximation of probability.

A forward error correcting code corrects errors only doubt?

A. requiring partial retransmission of the signal

B. requiring retransmission of entire signal

C. using parity to correct to errors in all cases

D. requiring no part of the signal to be transmitted

What does add mean in math?

in maths add means to add numbers together . it is usally added in to an equation.

Do intersecting lines meet at two points?

Lines intersect if the meet at one point. Perpendicular lines also meet at one point, but their intersection is a right angle.

Intersecting lines in the plane do not meet at two points.

What are the characteristics of continuous training?

There are a few characteristics of continuous training. Those with higher skill levels and university degrees will likely be trained more than those with lower skill levels. Females are also more likely to receive training over males and training also tends to decline with age.

When plotted on a graph a population of field mice over time shows a J shaped curve what does this indicate?

The answer will depend on the time scale covered by the graph and the method used for counting the population. The number of mice foraging when there are babies will depend on the availability of food: if it is easy they will not wish to spend time outdoors, for example.

On a longer time scale it might show that the population fell for some reason. This could be lack of food or of predators that were successful. In the first case, the smaller population in the following period could be supported by local food resources and so the population recovered. The case of over-predation would lead to a scarcity of food for the predator and so their numbers would decline. This would allow the field mice population to recover.

More detailed local knowledge is required before anything can be deduced from the information.

Finally, it could simply be that a local farmer used powerful pesticides and that these killed the predators who ate poisoned field mice! Or the farmer was replaced by one who was less mercenary.

What is reserve distribution?

A non-distributable reserve is one which is not available for distribution to shareholders as a dividend.

How To Calculate Minimum Required Distributions From An IRA?

The IRS gives investors a pretty good deal with IRAs. The IRS will let you defer taxes on anything you put into an IRA but at some point they're going to want their money. That's why they created the minimum required distribution. Based on your age and the balance in your accounts, there is a minimum amount that needs to be withdrawn from your IRA every year once you reach age 70 ½. Otherwise, you'll incur a penalty.

The rules around calculating your minimum required distribution can get a little hairy so if you're unsure or need a little help you might want to consult an accountant. If you're ready to tackle it yourself, read on.

First, to calculate your RMD you'll need to consider that balance in ALL of your IRA accounts for the end of the previous year. For example, if you're calculating your minimum distribution for 2011, you'll need to look at the total IRA balance as of the end of 2010. The IRS doesn't care about individual accounts; just all the money you have under the IRA umbrella.

Second, grab a copy of IRS Publication 590. This will give you the government's life expectancy tables. You'll need to know – for IRA distribution purposes at least – how long the government expects you to live.

Now, you're ready to calculate. Take your total IRA balance at the end of the previous year and divide it by your life expectancy. As an example, if you have a total balance of $1 million dollars and you have a life expectancy of 17.4 years, your minimum required distribution will be $57,471. Next year, you'll do it all over again with a new balance number and a new life expectancy.

Keep in mind that minimum required distributions do not apply for Roth IRA accounts. Generally speaking, you'll need to make a required minimum distribution from all other retirement accounts.

How many people attend the bolshoi per year?

The Bolshoi Theatre in Moscow attracts approximately 1 million visitors each year. This includes performances of ballet and opera, as well as various events and special performances. The venue's rich history and world-renowned productions contribute to its popularity, making it a major cultural attraction in Russia.

Two ton is equal to how many pounds?

There are many tons out there some in use and some just historical. The ones commonly considered are long tons, short tons and metric tons (tonnes): * A long ton is 2240 lb. * A short ton is 2000 ib. * A metric ton (tonne) is 2205 lb. So the answer is 4480 lb., 4000 lb., or 2210 lb.