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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 importance of statistics in civil engineering?

Well...all the importance.

every structural design, every safety factor, every hidrologycal analysis, every mechanical analysis, everything, even the materials used are based on statistics. The results gotten from the analysis are projected to other conditions, and the probability of them to interact together (for example, earthquake, wind and max load. Or having the highest flow and rain)

What is the importance of statistics in civil engineering?

Civil engineering includes many disciplines including structural engineering, water resource management, waste water engineering and environmental engineering. In each of these disciplines, there is applications of statistics and probability theory. Some topics I have taken from a recent conference on probability and statistics in Civil Engineering (see link):

- Loss estimation
- Risk assessment and management
- Hazard analysis
- Probabilistic design
- Risk-based optimal design
- Maintenance and inspection
- Concrete and wood structures
- Bridges and special structures
- Geoengineering
- Earthquake engineering
- Wind engineering

The disciplines of both statistics and probability are important in Civil Engineering. Loss estimation and risk assessment are more in the area of probability modeling, however statistical analysis is necessary to ensure valid data is used in modeling.

In addition to the above, air and water pollution analyses requires statistics.

See related link.

What does 69th percentile mean?

Well, isn't that a happy little question! The 69th percentile means that you scored higher than 69% of the people who took the same test or assessment as you did. It's like being in the top 31% of a big, friendly group of folks. Just keep painting those happy little numbers, and remember, there are no mistakes, just happy little percentiles.

Find 2 ways to get four fives to equal 30?

Well, honey, one way to get four fives to equal 30 is to add them all together: 5 + 5 + 5 + 5 = 20. Then, multiply that by the remaining 5: 20 x 5 = 30. Another way is to get creative and arrange the fives like this: (5 + 5) x (5 - 5) = 10 x 0 = 0 + 30 = 30. Voilà!

How many combinations is there in 0000 9999?

If you have to find all the variations in the form of

0000

0001

0010

0100

1000

1001

...

...

9997

9998

9999

3332, 3323, 3233 and 2333 are made of the same numbers but are different and you have to count all four, that's why we are going to use variations - the order matters!

You can also see that repetitions are included. If you look it up, the formula needed in such case is nr where n is the number of elements (10) and r is the order of the sequence (4)

V = 104 = 10 000

But if you are looking for combinations the order doesn't matter, though you still have to include repetition

You use the binomial symbol Binomial[n+r-1,r] = (n+r-1)!/(r!*(n-1)!)

C = 13!/(4!*9!) = 13*12*11*10*9!/(4*3*2*9!) = 13*11*5 =715

Still a lot, though :D

Who is better at math Boys or girls?

Oh honey, math skills have nothing to do with gender. It's all about individual abilities and effort. So, instead of worrying about who's better, focus on honing your own math skills and proving all those stereotypes wrong. Math doesn't care about your gender, it just wants you to show it who's boss.

Is area cubed or squared?

Area is squared. In mathematics, area is a two-dimensional measurement of the size of a shape, typically measured in square units (such as square meters or square feet). The formula for calculating the area of a shape involves multiplying two linear dimensions (such as length and width), resulting in a value with units squared. Cubing a linear dimension would result in a measurement of volume, not area.

Which is smaller one third or one sixth?

1/6 is smaller than 1/3

1/3 = 0.3333...

1/6 = 0.1666...

thus, 1/6 is smaller than 1/3.
yes, one third means there are three equal parts of a number, but one sixth means that it is a whole number split into six smaller peices. think of it like a cake; the less you divide it, the more you get.

Show all 3 number combinations using 7 and 8 and 9?

Oh, what a happy little question! Let's create some beautiful number combinations with 7, 8, and 9. We can have 789, 798, 879, 897, 978, and 987. Just like painting, there are endless possibilities when we mix these numbers together. Keep exploring and creating!

How many combinations you can make from 34 numbers?

There are 234 - 1 combinations.

Each one of the 34 numbers can either be in a combination or not in it. The two-fold choice gives 234 possible options. However, one of these consists of the option where in each case the choice is "not in it". So you have a null combination. Excluding that combination leaves 234 - 1.

Remember that in a combination, the order of the numbers does not matter.

When did February 13th fall on a Friday?

February 13th falls on a Friday in a common year when February 1st is a Friday. This occurs when there are no leap years between the year in question and the nearest leap year preceding it. For example, February 13th, 2015 fell on a Friday, as the nearest leap year before 2015 was 2012.

What is a number that occurs most often in a data set called?

Oh honey, that's called the mode. It's the number that struts its stuff the most in a data set, like the popular kid at school. So next time you see a number hogging all the attention, just remember, that's the mode showing off.

What is the value of 7 in 27?

Well, darling, the value of 7 in 27 is simply 7. It's not playing hide and seek or trying to be mysterious, it's just hanging out there, front and center. So, in a nutshell, the value of 7 in 27 is 7. Hope that clears things up for you, sugar.

Who is the father of probability?

Nostradamus. A French, in later life moved towards the occult as it was in style back then,

but predictions made by him are accurate and so do Big idiots with no brains say its a fluke.

What are the two names used in binomial nomenclature?

binary nomenclature (especially in botanical circles), or binomial classification system

The two names are:

the Genus (to which the species belongs)

the Specific Epithet (unique for each species within the genus)

Example: Humans are Homo sapiens

Binomial means the two part format of the scientific name

What type of graph is best to use to show the relationship between sets of data?

Gráfico de dispersão: é útil para mostrar a relação entre duas variáveis contínuas e identificar padrões e tendências.

  1. Gráfico de barras: é útil para comparar diferentes conjuntos de dados ou mostrar a distribuição de uma variável categórica em relação a outra variável.

  2. Gráfico de linhas: é adequado para mostrar tendências ao longo do tempo ou em uma sequência de eventos.

  3. Gráfico de pizza: é útil para mostrar a proporção de diferentes categorias em relação ao total.

What does the aumred mean?

It seems like you may be referring to "aumred" as a term that is not commonly recognized or defined. Without additional context or information, it is difficult to provide a specific meaning for this term. If you could provide more details or clarify the context in which "aumred" is used, I would be able to offer a more accurate explanation.

How many such digits are there in the number 5831649 each of which is as far away from the beginning of the number as when the digits are rearranged in ascending order?

Oh, dude, let me break it down for you. So, if you rearrange the digits of 5831649 in ascending order, you get 1345689. Now, let's see how many digits are in the same position in both numbers... drumroll... it's 2! The digits 5 and 9 are in the same position in both numbers. Like, mind-blowing, right?

There are 100 values in the set The median is 90 the mean is 95 Increase the highest value in the data set by 200 Now what are the median and the mean of the data set?

The median is the middle value (or mean of the two middle values if there are an even number of values) and so is unaffected by an increase in the highest data value. It is still 90.

The mean was 95, so the total for the data set was 95x100 = 9500. If the highest data value is increased by 200, the data set total is also increased by 200, giving a new data set total of 9500 + 200 = 9700, so the new mean is 9700/100 = 97.

Find the area of a box?

The question is ambiguous. I can determine the outside area of a closed box, given its height H, width W and depth D. The top and bottom are equal area, D x W. The front and back are equal area, H x W. The right and left sides are equal, H x D. So, we have 2 x (DW+HW+HD) = total outside area. If all sides are equal, we have 6xL^2, where L is the length of one of the sides.

What clothing starts with x?

In the English language, it appears that there are no items of clothing that start with the letter X. However, there are a few brands of clothing that begin with X, such as Xanaka, Xiomara Lisette and Xxi.

How many possible 4 digit combinations are there using 5 digits?

Oh, dude, you're hitting me with some math now, huh? Okay, so if you have 5 digits to choose from for each of the 4 spots, that's like 5 choices for the first spot, 5 for the second, 5 for the third, and 5 for the fourth. So, it's like 5 x 5 x 5 x 5, which equals 625 possible 4-digit combinations. Math can be fun, right?