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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

How many lines of symmetry does the letter B have?

The letter B has one set of line symmetry.The top of the B and the bottum.

What is a churl?

A churl is a rustic, a countryman or labourer - or a rough, ill-bred person.

What does EMC2 really mean?

E = MC squared means that Energy is equal to Mass times a Constant (which is the speed of light) squared.

100 feet equals how many kilometers?

One foot is equal to 0.0003048 kilometres. Therefore, 100 feet is equal to 100 x 0.0003048 = 0.03048 kilometres.

In maths what is a mode number?

a mode is the number that occurs the most.

EXAMPLE: 23,24,67,88,90,89,24,25,24

You see that there is three numbers of 24.

then 24 is your answer.

What is a hypothesis that has been tested many times and found to be true?

If a hypothesis has been tested many times (using approved experimental methods), and each test has proven the hypothesis to be true, the hypothesis can be taken to be a fact, or truth.

Standard deviation is helpful in calculating?

Standard deviation is a calculation. It I used in statistical analysis of a group of data to determine the deviation (the difference) between one datum point and the average of the group.

For instance, on Stanford-Binet IQ tests, the average (or, mean) score is 100, and the standard deviation is 15. 65% of people will be within a standard deviation of the mean and score between 85 and 115 (100-15 and 100+15), while 95% of people will be within 2 standard deviations (30 points) of the mean -- between 70 and 130.

What is the mean median mode and range 98 115 137 159 214 239?

Mean: 160.33

Median: 148

Mode: 98, 115, 137, 159, 214, 239

Range: 141

Can you explain can there be more than one expression that describes a set of data in a table?

Yes.

Given any set of n numbers it is always possible to fit a polynomial of order (n-1) that will generate the set of data.

For example, consider 2, 4, 8, 16, 32.

It is the sequence of numbers defined by

Un = 2n where n = 1, 2, 3, ...

But then consider Vn = (n4 - 6n3 + 23n2 - 18n + 24)/12 for n = 1, 2, 3, ...

These generate the same sequence for n = 1 to 5. Unless the data set is infinite, there is always the polynomial alternative. And that is not the only option.

What does headlong mean?

Headlong means entering a volatile situation boldly and without reservation. It can also mean head first, as when a running back in football charges headlong into the line.

How many doctors are there per 10000 people in UK?

Britain has one of the lowest of European countries with a "GP to Head of Population" ratio of 1:562

What does GEA Mean?

GEA means earth.

人物 盖娅(Gaea),希腊神话中的大地之神,所有神灵中德高望重的显赫之神。 介绍 是希腊神话中最早出现的神,在开天辟地时,由卡厄斯(Chaos)所生。她是宙斯的祖母,盖娅生了天空,天神乌拉诺斯(Ouranos or Uranus),并与他结合生了六男六女,十二个泰坦巨神及三个独眼巨人和三个百臂巨神,是世界的开始,而所有天神都是她的子孙后代。至今,西方人仍然常以"盖娅"代称地球。

What do the Error codes 0405 and 0404 mean?

Code 0404 is the exhaust gas recirculation circuit range performance problem. Code 0405 is the exhaust gas recirculation sensor A circuit low.

What is manipulation?

Manipulatives are activities that one may do in class used to learn a step by step process like photosynthesis.

What is probability of at least 2 heads on tossing 3 coins?

There are 8 permutations of three coins. Of these, 3 of them have two heads, so the probability of tossing two heads on three coins is 3 in 8, or 0.375.

However, you said, "at least", so that includes the case of three heads, so the probability of throwing at least two heads is 4 in 8, or 0.5.

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