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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 average of 91 93 and 95?

There are three terms. You add the terms and divide by the numbers of terms to find the average/mean.

Hence

(91 + 93 + 95 ) / 3

279/ 3 =

93 the mean!!!!!

What is the sum of the deviations from the mean?

The sum of standard deviations from the mean is the error.

What is the relation between Sample and population regression function?

The sample regression function is a statistical approximation to the population regression function.

What is 48 rounded to the nearest 100 and 1000?

Rounded both to the nearest hundred and thousand, 48 is approximately equal to 0.

How many numbers do you have to get to win on the lotto?

It depends on how big a prize you want to win. You can win a prize with even one correct number. For example, in Powerball, if you match just the Powerball number, you win $4.00.

For Ozlotto, you are required to get 7 correct numbers, none being any of the 2 supplementary numbers.

In Powerball you are required to get all 5 numbers plus the Powerball to win the biggest prize.

What is the Advantages and disadvantage of multiple bar chart?

A multiple bar chart, also known as a grouped bar chart, is a graphical representation of data that uses several bars grouped together to compare values across different categories. Here are some of the advantages and disadvantages of using a multiple bar chart:

Advantages:

Easy to compare values across different categories.

Can show multiple data sets side-by-side in a single chart, which makes it easier to spot trends and patterns.

Provides a clear visual representation of the data, which makes it easier for viewers to understand and interpret the information.

Disadvantages:

Can become cluttered and difficult to read if there are too many bars or categories.

Limited to a small number of variables or data sets.

May not be suitable for displaying complex or continuous data, such as time-series data or data with a large number of categories.

Can sometimes distort the visual representation of data if the scales on the y-axis are not consistent across different bars.

Overall, multiple bar charts can be a useful tool for comparing values across different categories and presenting data in a clear and easy-to-understand way. However, it's important to consider the potential disadvantages and limitations of this type of chart and choose the most appropriate chart type for the specific data being presented.

Importance of algorithms in the field of computer science?

Algorithms are critical to the field of computer science. They embody the logic used to solve a problem. Written in words, they are (computer) language independent, and they allow peer/team review, so that a good design can result.

SUPPOSE WE study the CONTINUOUS VARIABLE: "REPAIR TIME of A machine, in MINUTES". where the POPULATION average IS 135MIN. A SAMPLE of 20 OBSERVATIONS of THAT VARIABLE IS TAKEN. IS possible for the SAMPLE MEAN TO BE EXACTLY EQUAL TO 135MIN?

Yes, it is possible for the sample mean to be exactly equal to 135 minutes. This is because the sample mean is calculated by dividing the sum of all the observations by the number of observations. Therefore, if the sum of all the observations is exactly equal to 2700 minutes (135 times 20), the sample mean would be 135 minutes. However, this is highly unlikely to happen.

Importance of statistics in field of computer science?

There are many reasons why statistics in are in important in a field of computer science. These statistics help improve computers.

What is Non-destructive testing and procedure for testing?

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Is accuracy a measure of how close an answer is to the actual or expected value?

Precision and accuracy are two ways that scientists think about error. Accuracy refers to how close a measurement is to the true or accepted value. Precision refers to how close measurements of the same item are to each other. Precision is independent of accuracy.

What do you mean by l'homme?

I never said that.......but if I had, I would have meant "the man" in French.

When did they use sundials?

There is no specific date stated as to when sundials were first used.

Types of flow chart?

Flow chart: - A flow chart is a symbolic representation of any process. Each step in the process is represented by a different symbol with a short description of the process. The flow chart symbols are linked together with arrows showing the process flow direction.

There ate two types of flow charts

1. Low level flow chart

2. High level flow chart

What does positive skewness signify in normal distribution?

A normal distribution is not skewed. Skewness is a measure of how the distribution has been pulled away from the normal.

A feature of a distribution is the extent to which it is symmetric.

A perfectly normal curve is symmetric - both sides of the distribution would exactly correspond if the figure was folded across its median point.

It is said to be skewed if the distribution is lop-sided.

The word, skew, comes from derivations associated with avoiding, running away, turning away from the norm.

So skewed to the right, or positively skewed, can be thought of as grabbing the positive end of the bell curve and dragging it to the right, or positive, direction to give it a long tail in the positive direction, with most of the data still concentrated on the left.

Then skewed to the left, or negatively skewed, can be thought of as grabbing the negative end of the bell curve and dragging it to the left, or negative, direction to give it a long tail in the negative direction, with most of the data still bunched together on the right.

Warning: A number of textbooks are not correct in their use of the term 'skew' in relation to skewed distributions, especially when describing 'skewed to the right' or 'skewed to the left'.

On what depend on volume?

The dimensions of the object. Sometimes, the geometry can be too complex to identify the volume. This is where Archimedes principle can be used, that water will displace the equivalent volume of the object which is submerged in it. In this case, only the dimensions of the container need to be known. See related links. Second link on density relates to Archimedes discovery.

What does anchored mean?

"To be anchored in in Jesus." So yes, to bestable. It usually means to feel stable? But can have other meanings such as a news anchor. Which is a more permenant newsreader.

What does swafega mean?

It is the Name of a soap used for cleaning very dirty industrial hands .. such as those of a Mechanic..

What is value curve?

A Value Curve was first used by Accor, a French hotel chain in 1985. Value Curves were first described in a paper authored by W Chan Kim and Renee Mauborgne entitled, "Value Innovation: The Strategic Logic of High Growth," published in HBR in January, 1997. This paper has generated more reprints for HBR than any other paper published in HBR in the 1990's.

Value curves have been popularized in Kim and Mauborgne's "best selling" book, "Blue Ocean Strategy," HBS Press, March 2005.

A Value Curve is divided into two halves. On the left side are the Elements of Performamce. These Elements, in aggregate, define the product or service. On the right side of the curve is the value delivered to the most important customer for each of these Elements.

Value Curves with metrics are an elegantly simple way (one ppt slide) of describing project goals to project team members, stakeholders and senior management.

Dick Lee

President and Founder

Value Innovations, Inc

dick_lee@value innovations.net

+1-303-688-4143

What does unanswered points mean?

The term 'unanswered points' is used when one team has scored many points in a row while the other team has not scored. For example, if the Broncos lead the Raiders 21-0 in the second quarter, you might hear the announcer say "The Broncos have scored 21 unanswered points". Or if the Broncos were leading 21-0 and the Raiders scored 28 straight points to make the score 28-21, you might hear the announcer say 'The Raiders have scored 28 unanswered points".