Thursday, January 22, 2009

scribepost jan. 22

Today we did math link page 437-439 1-16We have a Quiz tommorow jan 22 2009 its about

decimals/fraction/percents/mean/median/mode/range/outlierThis could help you for the test tommorow

Decimals-A linear array of digits that represents a real number, every decimal place indicating a multiple of a negative power of 10. For example, the decimal 0.1 = 1/10 , 0.12 = 12/100 , 0.003 = 3/1000 . Also called decimal fraction.

Fraction- a number expressed as a quotient, in which a numerator is divided by a denominator. In a simple fraction, both are integers. A complex fraction has a fraction in the numerator or denominator. In a proper fraction, the numerator is less than the denominator. If the numerator is greater, it is called an improper fraction and can also be written as a mixed number — a whole-number quotient with a proper-fraction remainder. Any fraction can be written in decimal form by carrying out the division of the numerator by the denominator. The result may end at some point, or one or more digits may repeat without end.

Percent-, a quantity can be increased by any percentage but cannot be decreased by more than 100 percent. Once pollution has been reduced by 100 percent, for example, it ceases to exist. In defiance of this logic, however, advertisers sometimes refer to a 150 percent decrease in lost luggage or a new dental rinse that reduces plaque on teeth by over 300 percent. Presumably what is implied by the latter is that the new rinse is three times as effective as some other rinse, but such constructions are still subject to criticism as illogical.·Percent can take a singular or plural verb, depending on how the quantity being described is viewed. Very often what determines the form of the verb is the noun nearest to it. Thus one might say Eighty percent of the legislators are going to vote against the bill or Eighty percent of the legislature is set to vote the bill down. In the second sentence the group of legislators is considered as a body, not as individuals. When percent is used without a following prepositional phrase, either a singular or plural verb is acceptable.
Measures Of Central Tendancy
mean- The MEAN is the arithmetic average, the average you are probably used to finding for a set of numbers - add up the numbers and divide by how many there are:Eg(80 + 90 + 90 + 100 + 85 + 90) / 6 = 89 1/6.

mode-The mode of a set of numbers is the one that occurs most often. So, in the set {1,5,7,5,9}, the mode is 5 because there are 2 fives and only one of each of the others.Now here is a problem for you: Find the mode of this set of numbers:2 6 9 0 5 2 4 1 6 4 5 2

median- Median is the middle value of the given numbers or distribution in their ascending order.Median is the average value of the two middle elements when the size of the distribution is even.

Range-Example 1:The Jaeger family drove through 6 midwestern states on their summer vacation. Gasoline prices varied from state to state. What is the range of gasoline prices?$1.79, $1.61, $1.96, $2.09, $1.84, $1.75Solution:Ordering the data from least to greatest, we get:$1.61, $1.75, $1.79, $1.84, $1.96, $2.09highest - lowest = $2.09 - $1.61 = $0.48Answer:The range of gasoline prices is $0.48.

Outliers- For a set of numerical data, any value that is markedly smaller or larger than other values. For example, in the data set {3, 5, 4, 4, 6, 2, 25, 5, 6, 2} the value of 25 is an outlier.I



argie772 said...

good job aldrine.
there is alot of useful information in there and on the links you put.
but you could have put some colours, pictures, and videos.
and again good job

razel772 said...

good job.. but you should put colors and video..well good job.

Ralph772 said...

Good Job! I liked how you put lots of info and links. Maybe next time you should try puting videos, pictures and some colour. Good Job

Ronny 772 said...

Nice job Aldrine
Lots of Info
Good Links

You just need colour, maybe some videos, and an image or something iuno

Good work though

Carla772 said...

good job aldrine!
but you should put colors, pictures, or videos to make it more interesting. i liked how you put a lot of information in it. good job again.

Binesi7-72 said...

Nice job aldrine
maybe some spaces after each new topic, color would be good to.
Lots of information though!

Telisa72 said...

i think that u could have put in colour but i love it otherwise there was alot of info

kevin772 said...

good job ! but you should've put pictures and videos to make it more interesting .

Elaine772 said...

Good job Aldrine! You put put a lot of information that is very useful but I think that you could've fixed your punctuation. You could also add pictures videos and colour to made it more attractive. But other than that you did nice job.

MaryJane772 said...

Great job Aldrine !
You put a lot of information that were useful so good job on that. Although, you could've added some sort of picture, video, or maybe even some color so it would grab people's attention. It was still a nice job though.

Camille5 said...

awesome job aldrine but you could of put the sentences in paragraphs,add color,pictures and videos but still it was good

Brendan772 said...

Nice work aldrine !

Everything was awesome exept you didin't use color or links... =(

althea7-72 said...

good job aldrine,
you explained everything well.You put a really good exmples and links for each of the topic that we discussed.although,you should put spaces each new topic.Anyways well done!

Alex 7-72 said...

nice job Aldrine. I liked how you put lots of info. But I thought you could have put some video`s, picture`s, links, and color to make it more interesting. Good job.

elmane8-73 said...

Great Job! Everything was Very organized, and also put links on the "main" words, I can tell that you did a very good job on your scribe just by looking at it! Great job again!

celdrickpetilla7-72 said...

good job aldrine
but you could have put pics,colours, and videos

anyways good job


Zerlina 873 said...

Good job Aldrine! I liked how you used alot of text and links, but you should add a picture or two. Your title should be capital. Anyways, good job!

Jasmine772 said...

Wow goodjob on the long notes xD

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