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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.
36,756 Questions
What is the advantages and disadvantages of multiple regression?
Advantages:
The estimates of the unknown parameters obtained from linear least squares regression are the optimal.
Estimates from a broad class of possible parameter estimates under the usual assumptions are used for process modeling.
It uses data very efficiently. Good results can be obtained with relatively small data sets.
The theory associated with linear regression is well-understood and allows for construction of different types of easily-interpretable statistical intervals for predictions, calibrations, and optimizations.
Disadvantages:
Outputs of regression can lie outside of the range [0,1].
It has limitations in the shapes that linear models can assume over long ranges
The extrapolation properties will be possibly poor
It is very sensitive to outliers
It often gives optimal estimates of the unknown parameters.
What age groups have the highest death rate in drivers?
17-25... simply because they're inexperienced, and (in many cases) immature. Additionally, they are more likely to take risks by their passengers inciting them to drive irrationally.
What is the ratio of aces to the total number of cards in a standard deck of cards?
1-14 stupid, seriously, how stupid are you?
What is the purpose of data analysis in Excel?
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
Spreadsheets are for numerical analysis and manipulation. So in using Excel you would be doing a lot of analysis on numbers, like totalling them, averaging them, making charts from them, trying to determine trends from them, doing other calculations from them, comparing them and so on. Analysis of data is fundamental to computers. Spreadsheets do a lot of it with numerical data.
How many modes can a set of numbers have?
There can be as many modes as the number of observations.
If you roll a regular die 5 times and get 1, 2, 3, 4, 5 then each one of them is a mode. They all appear the most often - more than number 6 did.
If the next roll produced a six, there are either 6 modes or none. Opinions differ.
There can be as many modes as the number of observations.
If you roll a regular die 5 times and get 1, 2, 3, 4, 5 then each one of them is a mode. They all appear the most often - more than number 6 did.
If the next roll produced a six, there are either 6 modes or none. Opinions differ.
There can be as many modes as the number of observations.
If you roll a regular die 5 times and get 1, 2, 3, 4, 5 then each one of them is a mode. They all appear the most often - more than number 6 did.
If the next roll produced a six, there are either 6 modes or none. Opinions differ.
There can be as many modes as the number of observations.
If you roll a regular die 5 times and get 1, 2, 3, 4, 5 then each one of them is a mode. They all appear the most often - more than number 6 did.
If the next roll produced a six, there are either 6 modes or none. Opinions differ.
What does it mean for a product to have been pasteurized?
This means that the food has been treated in some manner to kill pathogens that may be present in it. This can be done with heat, chemicals, radiation, or pressure.
steady persistence in a course of action, a purpose, a state, etc., esp. in spite of difficulties, obstacles, or discouragement. 2. Theology. continuance in a state of grace to the end, leading to eternal salvation
How would you answer this question. Find the greatest number possible using these digits. 1 3 5 7?
Different ways to experiment:
- Try writing the digits in a different order, e.g. 3571 is greater than 1357.
(Could these digits be rearranged to make an even higher number?)
- Try adding the numbers together e.g. 35 + 71
- Try multiplying the digits in different ways, e.g. 1 x 357, 3 x 517 etc
- Try multiplying the numbers by themselves.
Example of using this method:
2 x 3 = 6
but 23 = 8 (23 means 2 multiplied by itself 3 times)
So we see that multiplying numbers 'with themselves' gives a greater answer than simply multiplying numbers with other numbers
Let's try this method with 1,3,5,7
- 7513 (which means 751 x 751 x 751) = 426,564,751
- 3175 is ... a huge number!
Workings:
The result of 3751 has 359 digits!
i.e.
2079995016677066850372981010516385195139432445379955858495369328256537
2093317627257441611421498899027320821439897036697587148396474631750097
9204208056247437566321037997877361642116920090225167939103806929630928
2288269873178257886078825558517232416384715642204809589256745644662726
6783499073830363538058695307613757378664939520035256327649649077012817
246848747
(To make it fit neatly on the screen the number has been split and the commas marking the thousands have been omitted)
These are only a few suggestions. Try different ways of using the given numbers. Who knows, you may be able to find an even greater number than the example given above!
How many two-digit even numbers can be composed from nine digits 1 2 3 9?
The second digit can be 2,4,6, or 8.
There are 4 ways of choosing the second digit. The first digit can be chosen from the remaining 8 digits.
8x4 = 32 numbers.
Here, it is assumed that the numbers do not repeat
How many Wichita Kansas blocks equal a mile?
its 14 blocks total distence of 5280 ft. Each block is 377.142587 ft long.
What is the probability of rolling a ten with a pair of number cubes?
assuming a pair of dice...
4 possibilities out of 36 total possible results are:
4,6
6,5
5,5
5,5
So P(10) = 4/36
An oracle is someone who has great knowledge. They can give prophesies with high authority. Such as the Oracle at Delphi.
