30 July 2012

Median is more reliable than Mean (or Average) in Statistics Description???

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Mean is an average of data. That is, the sum of data divided by the total number of data. Median, on the other hand, is simply the mid point of data. In this post, I quote an interesting and useful insight from a scientific journal paper about how can someone manipulates descriptive statistic by using Mean or Average value to depict data as follows:

“...Regular hourly employees, however, seldom earn more than $50,000 annually. Because the top management salaries are so high, the mean is strongly distorted by the very few extremely high salaries. Thus, the mean salary is much higher than a typical factory worker could ever earn. For example, if 1,000 employees earn $40,000 each, two top executives each earn $10 million, and the chief executive earns $20 million, the median salary is $40,000, but the mean salary is $79,670
almost $80,000 per year, and double what the average worker earns.




25 July 2012

Free Online Multivariate Regression Learning Resources

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Recently, I find out three comprehensive free online multivariate regression learning resources as following. Hereby I list out their table content and links so that you can have a quick look for your interested topics.
ST111: Regression and analysis of variance
http://statmaster.sdu.dk/courses/st111/index.html



22 July 2012

Free Educational Booklet on "Understand mini-stroke" from Hovid

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"Hovid (formerly known as Ho Yan Hor) carries with her years of invaluable experience in the pharmaceutical industry. Listed on the Main Board of Kuala Lumpur Stock Exchange, Hovid spells familiarity and quality among healthcare providers. With the various divisions in the organization that have been established through years of experience, we are able to deliver speed, excellence and above all, Continuous Innovation and Quality." hovid.com

Instead of sharing my investmemt analysis about Hovid (a listed company in Bursa Malaysia), I am going to share with you a Free Educational Booklet on "Understand mini-stroke" that is provided by Hovid.



19 July 2012

Renew or register Business Registration: RM50 for 5 Years: SSM

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Good news from Suruhanjaya Syarikat Malaysia (SSM)!!

Under "pakej insentif", you can register or renew your business registration with only RM50 for 5 Years!!!

Normal price are:
Sole proprietorship using personal name as in identity card –RM30.00
Sole proprietorship or a partnership using trade name -RM60.00

What a big saving.

Additionally, in case you got any outstanding fines due to your expired business registration, there is a 50% reduction for the fines.

These offer is only valid from 1st June 2012 to 31th December 2012.




10 July 2012

About Stock Investment: (Unknown*Uncertainty)^(Conflict of interest) = Mission impossible.

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If we can succeed in stock market investment by simply "monitoring" the price and the volume plus some sort of "insiders' news or tips", then the probability to succed in stock market investment via this approach is proportional to the product of "unknown" and "uncertainty", and divided by the "conflict of interest".
Unknown:
We have no idea who are the traders everyday.
We have no idea why they bought or sold in a particular day.
But we do know they must have their own reasons to make such decision.




07 July 2012

RHB platinum card: Be aware: Salesperson - Too good to be true

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Today, in a shopping mall, a slightly fat credit card agent approached me and shown me how good a RHB platinum card is as follows: (I only list out what I was interested in)
1. Petrol - 10% cash-back every first week; 5% cash-back in any petrol station
2. No cap for cash-back
3. RM50 cash award (to offset the government tax)
4. others

Since I was quite interested in the saving from the petrol expenses, I went with him for further information. Although I told he I did not have EPF, he insisted to scan my ID card via EPF machine and said that monthly contribution of RM200 in EPF can have a try to apply this card. The funniest thing was he shown me his ID card and told me that he was already more than 30 years old, so what he said was reliable. In addition, he kept repeat that only he knew about the petrol cash rebate matter!!!

However, the thing is, based on RHB official website: (http://www.rhb.com.my/cards/credit-card/cc_platinum_main.html) I feel I was lucky since I was not eligible to apply this platinum card. Let me highlight the two things that I concern about from RHB website as follows:



05 July 2012

Charlie Chaplin: The Great Dictator speech - in the name of democracy, let us all unite!

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An inspiring speech that should be shared with everyone in this world.


Script (Start from 1.02)
"I'm sorry, but I don't want to be an emperor. That's not my business. I don't want to rule or conquer anyone. I should like to help everyone if possible; Jew, Gentile, black man, white. We all want to help one another. Human beings are like that. We want to live by each other's happiness, not by each other's misery. We don't want to hate and despise one another.