Friday, December 26, 2008

Mayadari Maisamma Lyrics

Mayadari Maisamma
mayadari maisammo maisamma
manamu maisaram podame maisamma (2)

maisamma maisamma maisamma maisamma
nannu gabarapetti ..
nannu gabarapetti
gayabu gake maisamma
zara pareshani jeyake maisamma..
mayadari maisammo maisamma
manam maisaram podame maisamma

podugala poddugalla evadi moham jusano
podugala poddugalla evadi mohamu jusano ...
polamu dunnutunte maisammoo.. o o .. o o .. o o .. o o .. maisamma
nenu polamu dunnutuntene maisamma
naaku bangaram dorikene maisamma (2)
o .. maisamma maisamma maisamma maisamma
nannu gabarapetti ..
nannu gabarapetti
gayabu gake maisamma
zara pareshani jeyake maisamma..
mayadari maisammo maisamma
manam maisaram podame maisamma

pedapatnam poyi pattu koka testane
pedapatnam poyi pattu koka testane
kokaku tagga anchu ravikane testane
maisammoo.. o o .. o o .. o o .. o o .. maisamma
neeku padigajala mallepule maisamma
techi koppu ninda pedthane maisamma (2)
o .. maisamma maisamma maisamma maisamma
nannu gabarapetti ..
nannu gabarapetti
gayabu gake maisamma
zara pareshani jeyake maisamma..

mayadari maisammo maisamma
manam maisaram podame maisamma
maisamma maisamma maisamma maisamma
nannu gabarapetti ..
nannu gabarapetti
gayabu gake maisamma
zara pareshani jeyake maisamma..

mayadari maisammo maisamma
manam maisaram podame maisamma

E-learning-2009 prediction

It is just a matter of time before E-learning is the Rule not the exception.Conventional In person learning will give way to e-universities with fewer brick and mortar Institutions and only niche learning which really needs an in person interaction will be brick&mortar. Anything can be taught and learned via e-learning and I see no great difficulty in achieving this, just needs a bit more of an out-of-box thinking and adapting course-ware and interaction to E-learning. As the Old saying goes " You don't have to go to Aristotle- Aristotle will come to you" and there definitely will be more Platos. Welcome to the New World.

Wednesday, December 24, 2008

Probability Lesson 0

Hi all,
Due to a lack of a better method of training on Probability and Statistics, I am trying out a new idea where you can learn in bits and pieces. The learning has to be self motivated.Most of you would have read basics of Probability and Statistics and might not be comfortable dealing with it. Lets start with basics, once we are all warmed up we can move faster in our learning process. This will be a combination of theory and problems but will be more in a Q&A mode.
To start off Lesson 0 which most know but find it difficult to use
Probability = Number of favorable outcomes/ Total Number of Outcomes.
This is the most basic definition and will apply to most.
Example 1: If I throw a die whats the probability of getting a 3
Answer: Probability(getting a 3) = Number of ways to get 3/ Total Number of Outcomes possible = 1 /6
Try this on your own:(Don't discuss with anyone and Don't google)
If I throw two five faced dice(Numbers on five faces are 1,3,5,7,9) what is the probability of getting a number less than 16?
I will post the answer with the next lesson but suggest all of you try this

Odds:
Lots of questions tutors encounter these phrases you get either Odds in favor or odds against.
Lets look at the example I gave above. What are the odds in favor of getting a 3 when a 6 faced die is thrown?
Odds in favor (Odds for) of throwing a 3 is 1 to 5
Odds in favor can be defined as
= Number of Favorable Outcomes to Number of Unfavorable outcomes
in this case it is easy to see it is 1 to 5 or 1:5

Odds against is the exact opposite of the above
Odds against(odds not for) is defined as
= Number of Unfavorable Outcomes to Number of favorable outcomes

So , Odds against throwing a 3 is 5 to 1 or 5:1

So keep your answer ready for this question:
If the Odds for winning a race for a Horse Named Wordpress is 3 to 4 what is the probability of Wordpress winning?
P.S: If the question has just the word Odds it means Odds Against
Answers will be posted with Lesson 1 on December 25th or 26th based on the number of views this Post gets. Please let all tutors know about this by word of mouth / word of chat or however.Please post feedback on what you like for lessons coming up.

Friday, December 19, 2008

Number of solutions to x^2+y^2+z^2=81 / x2+y2+z2=81

The number of integer solutions to the equation x^2 + y^2 + z^2 = 81 are
(A)72 (B)15 (C)30 (D)102 (E)120

Answer: D

how ? click here to know

Partition of Integers

How many ways can we partition the number 504 using 4 non negative Integers?

Answer: 507 C  3
For solution Click here to Connect to Live Help

Thursday, October 9, 2008

Venture Capital Outlook




Lean, mean, and survive.

Today, Sequoia Capital hosted a mandatory CEO All-Hands Meeting on Sand Hill Road (where else?). There were about 100 CEO’s in attendance and let me tell you, the mood was somber. I’m not one to perpetuate doom and gloom or bad news, but let me underscore this for you: We are in a serious economic downturn and this is just the beginning. Immediate, decisive and swift action is required, along with frugal, day-to-day management of expenses and our business is required.

Speakers:
Mike Moritz, General Partner, Sequoia Capital (he moderated the speakers).

・ Eric Upin, Partner, Sequoia Capital (Eric ran the $26-Billion Stanford Endowment Fund and knows a few things about Economics and investing.)

・ Michael Partner, Sequoia Capital (Michael was recruited to start Sequoia’s very first hedge fund, coming from Maverick Capital and Robertson Stephens. I know him from my BEA days.)

・ Doug Leone, , General Partner, Sequoia Capital

Slide projected on the huge conference room screen as people assembled inside the conference center to take their seats: a gravestone with the inscription: RIP, Good Times.

Mike Moritz:

・ The only time Sequoia’s assembled all CEO’s like this was during the dot.com crash.

・ We are in drastic times. Drastic times mean drastic measures must be taken to survive. Forget about getting ahead, we’re talking survive. Get this point into your heads.

・ For those of you that are not cash-flow positive, get there now. Raising capital is nearly impossible if you’re too far off of cash flow positive.

・ There will be consequences for those who hesitate. Act now.

Eric Upin:

・ It’s always darkest before it’s pitch black.

・ Survival of this storm means drastic measures must be taken now, so you will have the opportunity to capitalize on this down turn in the future.

・ We are in the beginning of a long cycle, what we call a “Secular Bear Market.” This could be a 15 year problem. [many slides on historical charts of previous recessions, averaging 17 year cycles.]

・ The credit market [versus the Equity markets] are the issue and will take time to recover.

・ Inflection point: Make changes, slash expenses, cut deep and keep marching. You can’t be a general if you turn back.

・ This is a global issue and not a ‘normal’ time.

・ There is significant risk to growth and your personal wealth.

・ Advice:

o Manage what you can control. You can’t control the economy, but you can control everything else.

§ Cut spending. Cut fat. Preserve Capital.

§ Don’t trust your models and spreadsheets. All assumptions prior to today are wrong.

§ Focus on quality.

§ Reduce risk.

Michael Beckwith:

Note: Michael had a lot of slides that were charts, data points and comparisons.

・ A “V” shaped recovery is unlikely [√]

・ Cuts in spending will accelerate in Q4/Q1. Look at eBay-this is just the beginning.

Doug Leone:
This is a different animal and will take years to recover.

・ Getting another round if you’re not profitable will be rough.

・ Do everything possible to get to cash flow positive. Now.

・ Nail your Sales and Marketing message.

・ Pound your competitors shortcomings. They’re hurting and they will be quiet. Take the offensive.

・ In a downturn, aggressive PR and Communications strategy

Monday, July 14, 2008

Probability distributions -Bulb failure

the length of time that light bulbs will be functional is normally distributed with a mean of 800 hours and a standard deviation of 160 hours. If testing determines that 0.3% of the bulbs fail within the first x hours then x in hours is:

The corresponding z -score for 0.3% or 0.003
0.5 -0.003= 0.497
z-score will be -2.75
(x-800)/ 160 = -2.75

x= 360 hrs.

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The art of problem solving - answer

At a certain time, Janice notices that her digital watch read a

minutes after two 0' clock. 15 min. later, it reads b min. after

three o' clock. She is amused to note that a is six times greater

than b. What time was it when she looked at her watch for the

second time?

2:54 and 3:09
a+15 = 60+b
as time has changed from 2 to 3 ( 1 hr = 60 minutes)
and we have a = 6b

so use the above two equations we get
5b=45 and b =9
therefore b =09 and a = 9*6 = 54
the times are 2:54 and 3:09

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Sunday, July 6, 2008

Normal Distribution problem

The length of time that light bulbs will be functional is normally distributed with a mean of 800 hours and a standard deviation of 160 hours. If testing determines that 0.3% of the bulbs fail within the first x hours then x in hours is:

The corresponding z -score for 0.3% or 0.003
0.5 -0.003= 0.497
z-score will be -2.75
(x-800)/ 160 = -2.75

x= 360 hrs.

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Numbers -Word Problems

The number 210 can be written as the sum of consecutive positive integers in several ways. When written as the sum of the greatest possible number of consecutive positive integers, what is the largest of these integers?

Sum to n terms 1,2,3,.........n is n(n+1) / 2.This will give us greated number of consecutive positive integers.

n(n+1)/2 = 210
so n(n+1)= 420
20*21= 420
so answer is 20

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Math Word Problems-Car Uphill downhill

A car travels downhill at 72 mph (miles per hour), on the level at 63 mph, and uphill at
only 56 mph. The car takes 4 hours to travel from town A to town B. The return trip
takes 4 hours and 40 minutes. Find the distance (in miles) between the two towns

Let the total distance travelled downhill, on the level, and uphill, on the outbound journey, be x, y, and z, respectively.
The time taken to travel a distance s at speed v is s/v.

Hence, for the outbound journey

x/72 + y/63 + z/56 = 4

While for the return journey, which we assume to be along the same roads

x/56 + y/63 + z/72 = 14/3

It may at first seem that we have too little information to solve the puzzle. After all, two equations in three unknowns do not have a unique solution. However, we are not asked for the values of x, y, and z, individually; but for the value of x + y + z.

Multiplying both equations by the least common multiple of denominators 56, 63, and 72, we obtain

7x + 8y + 9z = 4 · 7 · 8 · 9
9x + 8y + 7z = (14/3) · 7 · 8 · 9

Now it is clear that we should add the equations, yielding

16(x + y + z) = (26/3) · 7 · 8 · 9

Therefore x + y + z = 273; the distance between the two towns is 273 miles.

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Euclid's Algorithm

A pair of positive integers (x, y) satisfies the equation 31x + 29 y = 1125. What is x + y? ans - x+y=37

31x+29y=1125

31x+29y=1 we get for x=-14 and y=15

general solution is x =-14*1125+29*t y = 15*1125-31t

14*1125/29 <= t<= 15*1125/31 t is an integer
we get t as 544

plug in t back in the equations above
to get x =26 and y=11
so x+y=37

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Monday, June 2, 2008

Asymptotes



Find the asymptotes of the function
(x^2-4x+5)

f(x)= ---------------

x + 3
Answer: vertical asymptote is x=-3 because f(x) is not defined at that value.
If the degree of the numerator is bigger than the denominator, there is no horizontal asymptote.
for slant/oblique asymptote divide numerator by denominator
x+3 ) x^2-4x+5 (x-7
x^2+3x
___________________
-7x+5
-7x-21
__________________
26
y= f(x) = (x-7) + 26 / (x+3)

y= x-7 is the slant/oblique asymptote.

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