Probability

because u use maths everyday. you look at the clock and read the time, that is maths. u buy sumthing from the shop and u use money. that is maths. and you go to school or work, there is bound to be sum sort of maths in there.

A proportion is usually between 0 and 1. A probability is always between 0 and 1, inclusive; 0 being impossible and 1 being certain.

The related web sites give a good idea of the types of non-random sampling. These include snowball, convenience, quota, self-selection, diversity, expert, and others. Non-randon sampling is usually done because it is less expensive, easier, and quicker than random sampling.

The central limit theorem basically states that as the sample size gets large enough, the sampling distribution becomes more normal regardless of the population distribution.

The formal addition rule is P(A or B) = P(A) + P(B) - P(A and B). A good example from the related link, from the addition rule section is: ; Suppose we wish to find the probability of drawing either a king or a spade in a single draw from a pack of 52 playing cards. ; We define the events A = 'draw a king' and B = 'draw a spade'. ; Since there are 4 kings in the pack and 13 spades, but 1 card is both a king and a spade, we have (same formula as above in symbols): : = 4/52 + 13/52 - 1/52 = 16/52 ; So, the probability of drawing either a king or a spade is 16/52 (= 4/13).

21 beads assures that you have 5 of the same color (4*5+1)

This is a problem concerning binomial probability distribution.

If you have three coins, each one can land heads or tails. (We will ignore the remote chance that a coin will land on its edge.) Each coin has an equal probability of landing heads or tails. In other words, each coin has two possible states. Since there are three coins, there are 2 x 3 = 6 possible states. We can easily see what they are with a table:

HHH

HHT

HTH

HTT

THH

THT

TTH

TTT

Three of those possible eight states contain two and only two heads. So the probability of throwing any of those three states is three in eight, or 3/8 = 0.375.

A die normally has 6 sides numbered 1 through 6. The probability of you landing on ANY number is 1:6, or you have a 1 in 6 chance of landing a 3.

If there are 300,000,000 people in the US, then on average you share your birthday with over 82,000 people. Of course, if your birthday is 2/29, you would share it with about 1/4th of that number.

According to Department of Justice statistics, the odds of being a victim of a completed or attempted robbery in a year in the US are 1 in 419.1.

• chromosome segregation
• If the character is governed by a single allele and it is dominant, than its probability to be in the gamete is 75%.

There are 52 cards in a normal deck of playing cards, not counting the Jokers and advertisements.

Historical revisionism and political correctness continue to gain space in the “Mailbag” section. The latest is the claim by Richard Bennett (Oct. 20) criticizing the Rev. Bryan Griem about yoga. Bennett claims “algebra … was invented by a Muslim.” This is utter nonsense.

A Muslim? Who? Well, several pro-Islamist websites claim he was Abu Ja’far Muhammad ibn Musa, described by them as the father of algebra. But there’s a slight problem: Abu Ja’far was a newcomer. He lived from 780 to 850 AD. The origins of algebra precede his birth by 2,500 years — in ancient Babylonia, Egypt, and Athens.

The earliest known origins are the Rhind mathematical papyrus, written by the scribe Ahmes (or Ahmose) in Egypt around 1650 BC. Other authorities credit the Athenian Diophantus as the father of algebra, based on his series of books, “Arithmetica,” whose texts deal with solving algebraic equations. Diophantus lived and wrote 900 years before the founding of Islam in 610 AD — and 1,100 years before Abu Ja’far.

Indeed, the English word “algebra” comes from the Arabic word al-jabru. But al-jabru is not Arabic for invention or discovery — it means restoration or reunion. This clearly indicates acknowledgment of previous science, invention and use of algebra by others — not Muslims.

‘One another’ is Ok, as in ‘they can’t stand one another’.

Probability applies to heredity with the inheritance of certain genes and alleles that together make up heredity.

The question has to do with probability in that each parent cell can contribute one half of its genes. Because it splits through meiosis a parent cell can have one of two parts. The other parent cell has the same possibility of splits.

Therefore, one half times one half is one fourth. That is the probability of each gene being passed on.

Bee-wolf... or bear (bears eat honey, they hunt bees).

Find the number of students at a college taking at least one of the languages French, German and Russian from the following data: 65 study French, 20 study French and German, 45 study German, 25 study French and Russian, 42 study Russian, 15 study German and Russian while 8 study all three languages.

Balance of probabilities means comparison between the likelihood of truthfulness of different versions of a story. Also

Burden of Proof, means: preponderance of evidence....... and both phrases have the same meaning

الإلتزام بإثبات الإدعاءات....أو رجحان الأدلة

Choice D.

That means that there were larger purchases on credit for that period, there would be a corresponding increase in assets or expenses. Or, it could mean that oustanding payables from the previous period were not paid and are now overdue. It also means that the company has increased cash flow requirements for the following period.

From Seely - Anatomy & Physiology 6th Edition:

The hepatic ducts from the liver lobes

combine to form the common hepatic

duct. The common hepatic duct combines

with the cystic duct from the gallbladder

to form the common bile duct. (Bile contains no digestive enzymes, but it plays

a role in digestion because it neutralizes and dilutes stomach acid

and emulsifies fats. The pH of chyme as it leaves the stomach is too

low for the normal function of pancreatic enzymes. Bile helps to

neutralize the acidic chyme and to bring the pH up to a level at

which pancreatic enzymes can function.)

The common bile duct and the

pancreatic duct combine to form the

hepatopancreatic ampulla. The hepatopancreatic ampulla empties

into the duodenum at the major

duodenal papilla. Pancreatic secretions also enter the

duodenum through the

hepatopancreatic ampulla. The

accessory pancreatic duct also empties

into the duodenum.

Operational research allows business leaders to have more technical knowledge. With more research about operations, managers can choose the best alternatives presented to them. The key thing in this equation is that good operational research helps better business decisions. Often times the business decision often opted for is to spend more money on research.

This is a statistics question and the answer is 40,320 (8 factorial).