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Questions tagged [statistics]

The tag has no usage guidance.

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0answers
22 views

How can I choose an optimal threshold point used in Winsorizing in order to remove outliers?

I have a list of data that comes with outliers. I know there are many methods available to remove outliers or reduce their impacts. In this post I am specifically look at Winsorizing. The question is,...
2
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1answer
148 views

401k Statistics

This article claims: In fact, the average 401(k) balance at Fidelity — which holds 16.2 million 401(k) accounts and is consistently ranked as the largest defined contribution record-keeper — ...
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0answers
26 views

How to calculate the expected standard deviation of a weighted composite portfolio?

So my questions asks me to determine the expected standard deviation for a weighted composite portfolio, but I have no idea what equation to begin with. I have answered A, but B I am lost. Here is ...
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4answers
1k views

Are there people who make a living of sports betting?

I know that the overall expected value of sports bet is negative, however this is not as straight forward a system as scratchcard for instance. I am not asking whether it is a good investment to put ...
5
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2answers
179 views

How to determine the right level of disability insurance based on a person's lifestyle

I'm trying to determine what level of disability insurance is right for me. A thought crossed my mind: certain people experience less risk of disability. A person who works from home is at less risk ...
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0answers
48 views

What percent of first post-IPO earnings reports are disappointing?

It seems like every time a company has its IPO, the next earnings report fails to meet expectations and the stock price plummets. Shouldn't expectations be lower considering the frequency at which ...
4
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1answer
470 views

Why divide by ask rate to get the spread?

I want to know why when we calculate the spread equation, that is the difference between ask rate and bid rate divided by ask rate, why can't we divide by bid rate?
3
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4answers
573 views

Estate taxes and the top 1 percent by net worth

According to this website, you need to have over 10 million dollars for your family to be in the top 1 percent by net worth. However, only about .2 % of estates pay estate tax. The cut off for the ...
0
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1answer
76 views

How many Traders use own stratergy? [closed]

I'm trying to understand the Trading strategies in existence. Trading strategy various from person to person. Approximately how many traders would use own strategy? Is there a way to calculate the ...
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1answer
37 views

Volume Change comparitors

I've put together a little market addin for excel and have been asked by the person commissioning the plugin to add the Volume Change for the last minute. That was easy enough using my API (...
1
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1answer
5k views

How do I calculate portfolio standard deviation in Excel?

How do I calculate a portfolio standard deviation given a return? If I have 3 portfolios with similar size of $300 million. Portfolio A : Expected Return % / Dollar Amount : 3.78% / $11.34m, ...
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1answer
85 views

Estimate probability distribution of profit on investment [closed]

How can I estimate the probability distribution of the profit on investment if I put my money in, say, S&P 500? Beyond knowing my expected return, I want to know such things as: What are the ...
0
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1answer
130 views

How to get a grip on finance? [closed]

I hope this is not too off-topic (theoretical but not necessarily off-topic), but I am just starting to understand the financial world and I am a bit confused while reading publications and books ...
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7answers
4k views

Should I Use an Investment Professional?

A recent article I read cited: People who work with an investment professional are nearly twice as likely to those who DIY to feel confident that they will have enough money to retire. and 44%...
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2answers
525 views

What is the risk involved in buying a used car vs new?

A depreciation chart tells us that buying a two year old vehicle will save us a heavy cost of depreciation. However, if I keep the vehicle for 10+ years this initial cost averages down a good deal. ...
5
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2answers
348 views

Price to rent ratio outside of major cities

I'm interested in US price/rent ratios, such the list here: https://smartasset.com/mortgage/price-to-rent-ratio-in-us-cities However, it seems like such statistics are always compiled by major city. ...
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2answers
72 views

How do I calculate Future value adding fund charges?

Here is the statement on the NEST website. "We take a small percentage of the money going into your pot known as a contribution charge. This amount is 1.8 per cent." They then also charge £15 ...
2
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1answer
349 views

Why are Key Statistics for the same company different on various sites?

I'm looking at the same company (doesn't matter which) across Yahoo, Google, Reuters etc and the key statistics differ. For example. The Return on Equity for 32Red Plc (TTR.L) is: Yahoo - 46.73% - ...
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1answer
101 views

Why we sometimes use mean and sometimes use standard deviation to measure volatility

Both the metrics average true range and historical volatility measure volatility of a financial instrument's price. Average true range measures volatility on an intraday basis, while historical ...
2
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2answers
3k views

When to use geometric vs. arithmetic mean? Why is the former better for percentages?

While computing the average price of a stock or index over a period of time, I have the choice between using an arithmetic mean or a geometric mean. Which should I use and when? I am reading a book ...
4
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2answers
479 views

Are Americans in as much personal debt as the British? Are the sources of debt much different?

I recently came across an interactive infographic for the U.K. about personal indebtedness and was shocked at many of the stats in regards to personal debt — e.g. the UK national average ...
4
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3answers
656 views

If a mutual fund did really well last year, then statistically speaking, is it likely going to do bad this year?

I am a looking at a specific fund that made a killing last year. I know that this is a speculative question, but I am interested whether what I am saying held true over the years. Does a mutual fund ...
3
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2answers
158 views

How can I estimate the standard deviation

How can I estimate the standard deviation from stock graph without calculates, just from the graph
6
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1answer
7k views

How many weeks of living expenses does the average American have savings for?

I've heard that an average American has only enough savings to cover 3 weeks worth of living expenses. (I think it was on some radio show.) Is it true? If so, does anyone have the source?
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2answers
4k views

What is the average value of a credit card or debit card transaction?

There are a plethora of statistics regarding credit card usage but what I can't seem to find is the the value of the average credit card (or debit card) transaction. Are such statistics provided by ...