Using The Binomial Distribution Function
Sep 10, 2008
I have been working on a problem that requires being able to calculate the chances of any winnng a series of coin tosses with a weighted coin.
The coin has for arguments sake a 65% / 35% chance of landing heads or tails and to win the game you need to hit your side 9 times.
Can you use excel to calculate things like: If heads takes the lead 1-0, what does that mean the its overall percentage chance of winning? If the score is 7-3 to tails, what are the chances of either side gaining victory? etc, etc.
I thought that there would be a way of setting up a spreadsheet that listed the goal (first to 9, 12, 15 or whatever) and below this the percentage chance of heads and the percentage chance of tails. Then somewhere would be a box to enter the current score (0-0, 3-5, 1-1 or whatever) and beside this the current chance of heads or tails gaining victory.
I've tried setting up something like this but am a bit of a dufus when it comes to knowing how, where and when to use the different functions of excel.
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Nov 27, 2006
There is trading system which generates a winning trade per ONE stock in ONE month’s time with a probability of 5/12 (0,4166%). If the system trades 10 independent stocks the probability of any number of winning trades occurring out of all of them in ONE month is shown below:
None 0,0046
One 0,0326
Two 0,1047
Three 0,1995
Four 0,2494
Five 0,2172
Six 0,1272
Seven 0,0519
Eight 0,0139
Nine 0,0022
Ten 0,0002
I took these values from a book…I tried to reproduce these values in the spreadsheet that I attached. My table looks as follows:
0 0,0046
1 0,0033
2 0,0023
3 0,0017
4 0,0012
5 0,0008
6 0,0006..........
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Apr 8, 2008
I'm working on a problem that calculates data using a binomial distribution. The data derived from the binomial distribution is then used to calculate a cost. I would like to minimize cost by changing the number of " reservations". Can excel solver do this or is it too complicated? I have attached the file with what I'm working on. (Changing E1 to minimize E2 while Cells A9:A102 are calculating a binomial distribution)
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Dec 29, 2007
I'm trying to do a binomial distribution summation as part of a VBA function, and have been using the Application.WorksheetFunction.BinomDist function, which works fine until the numbers get large - the binomial coefficients used in the calculation end up being larger than can be held in a double floating-point number in VBA, so excel can't handle it. The final result of the calculation is a probability, so it's not a huge number! I was wondering if anyone knows an alternate way of calculating binomial probabilities which avoid any huge number intermediates.
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Oct 24, 2005
I know EXCEL has functions for both the NORMAL DISTRIBUTION and the
cumulative value thereof...
but is it possible to graph this data..
(I imagine if I sort the data and then calculate the ***. distributions into
a column...then chart it, it should work; BUT IS THERE ANOTHER WAY?)
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May 22, 2009
I need a formula that distributes a % based on position.
The positions are 1 through 20, and each one has a corresponding % value ...
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Jan 11, 2010
I'm looking to analyse is how long these articles take to reach maturity from their date of publication (so, when they achieve their optimum performance).
I'd then like to further analyse this across various metrics like article type/producer etc., which, I guess, would be in some kind of Pivot Table filter-type-thing.
Here's an example of some of my data:
ArticleName - PublishedDate - OctViews - NovViews - DecViews - ArticleType - Producer
Article1 - Oct-08 - 3701 - 4856 - 4561 - Food - ABCTV
Article2 - Nov-08 - 0 - 9824 - 1256 - Food - ABCTV
Article3 - Oct-08 - 1358 - 8953 - 9652 - Tech - XYZ.com
Article4 - Oct-08 - 1351 - 2354 - 3562 - Tech - ABCTV
The part I'm finding tricky is this; what we'd like to do is rather than look at a specific date (say, articles published on 09/04/08) it would be useful to combine all the dates so that the first month something is published is Month 1, regardless of the date it is actually published.
As the same article can be from the same producer but published at different times, if I could remove the "Jan-Mar = Month 1-Month 3" problem it would allow us to graph all the data into one snapshot of the publishing process and find trends. If this could then be cross examinable by the ArticleType etc. it'd be really useful.
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Nov 1, 2009
I have a spreadsheet which has a list of staff (column B) and work categories (row 3).
Row 4 is updated each day with a count of the incoming work for each work category.
I want to be able to randomly distribute (as evenly as possible) the no of work items in Row 4 between the doers (B7:B13). Each item of work also has to be checked so I would also like to randomly distribute the checking between the checkers (B16:B18)....
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Nov 16, 2006
Say I measure the height of 1000 people and I have those in a column in excel. It should be a normal distribution with mean x and standard deviation y. How do I actually graph it so I can see the normal distrubution curve that looks something like this:
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I tried making a scatter graph but it graphs them point by point. I want the height to be on the x axis and something like frequency on the y axis.
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Jan 23, 2007
There are 16,777,216 cells in a spreadsheet. These cells are distributed in a spreadsheet by 256 columns and 65,536 rows.
Can I in any way distribute these cells otherwise?
Say distributing them in 512 columns and 32,768 rows?
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Jul 18, 2007
i have some number that i want to put in a normal distribution
so.. i have age ( 1, 2, 3, 4, 5, 6, 7, 8, 9, 10) and have the number of times that the kid wake in the night ( 10, 12, 9,11,8,9,7,9,11) and want to do the normal distribution grafic with that .
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Sep 15, 2007
Refer to the attached sample workbook,
(Keep in mind that there is an error in the sample workbook; Im not sure how to remove and re-attach the sample workbook as this is my first day on this forum.)
Cell F19 should contain =D19*B19
Column 1- These values will not change and represent price/cost of each UNIT
Column 2- "UNITS" the quantity or number of items at column1 value
Column 3- "$ AMT" the total cost of UNITS at that price/cost, i.e. Column1*Column2
Im looking for a way populate the values in Column2 when, "NUMBER OF UNITS" AND "AVERAGE COST PER UNIT" are changed
Ideally speaking, As few units in one row as possible to allow for a good mix.
For example: What i don't want is $9000*86 for 774k.
If it helps: "AVERAGE COST PER UNIT" will always be a whole number rounded up to the nearest 1000.
I believe a Most Even distribution of units will work fine.
After the distribution/population of fields in column2;
D29 must equal F3
F29 must equal F7
I'm looking for something that will populate the values in D12:D27 while adhering to the two conditions above. Even when the Input at F3 and F4 are changed.
The values in "UNITS" represent the number of a specific cost item in inventory when added together do not exceed the "TOTAL COST OF INVENTORY". Depending on store location, the "AVERAGE COST PER UNIT" and/or the "NUMBER OF UNITS" will change. It will be used to help forecast how many of a specific cost item should be purchased based on the overall average unit cost without exceeding the budget or inventory space.
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Feb 22, 2014
How to crate a chart for normal distribution for a set of datas. say marks of students/ number of students in a class
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May 11, 2014
I'm trying to make a bell curve (normal gauss distribution). I have some problems regarding the probability density curve, since its values are so low. If you look column N in the attached file - I used the NORMDIST command. Values should be somewhere between 0,2 and 0,4 - but they're about 100x lower.
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Feb 16, 2014
AMOUNT 42400 is distributed among 6 people (C) in percentage if any of them or any 2 of them is deleted their contribution percentage need to be distributed among other.
I am attaching the example sheet... EXAMPLE.xlsx‎
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Jan 12, 2005
I need to know how to send an email from Outlook using a rather large email address list (500 addresses) that resides in Excel.
Also, I need to know how to hide the individual recipients and send it out under a title name. I want all of the recipients to see the title name only - and not each other.
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Jun 18, 2009
I'm trying to automatize the filling of 4 different tables regarding time (hours , minute)
In other words first i need to select from about 500 products names about 180 products i need. I solved this with an automatic filter like this
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Nov 27, 2006
I want to email with excel, and I know how to do it if I have a distribution list already set up in outlook. I want to avoid having this DL in outlook though, and instead keep a list in the actual excel workbook. I tried having the list and then combining all the cells with a semicolon inbetween the addresses into one single cell, then assigning that cell to a variable and inserting it in the cose in place of the DL name, but it doesn't work. Apparently you can't mail to mutliple address thru the VB code, either a single address or a DL. Am I incorrect in this? So I thought maybe I could somehow create the DL first using the names in the list thru code, and then using that DL name to send the workbook.
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Nov 24, 2004
I am trying to model the distribution of cash flows from a real estate investment. This is a bit complicated, but basically A1 through A37 are a series of cash flows after payment of debt service from month 0 (closing) to month 36. The real estate project has two investors, the Institutional Investor and the Developer. In this case, the Institutional Investor contributes 90% of the required project equity and the developer contributes the remaining 10%. The cash flow is distributed according to a set of parameters specifying cash flow percentage allocations and IRR targets, collectively known as a "cash flow waterfall"." As with all for-sale residential development deals, the early cash flows are negative and then turn positive as unit sales occur. The order of distribution of the cash flow remaining after debt service is paid is as follows (the waterfall):
1. Both investors receive the return of their invested capital from cash flow distributions.
1. Hurdle 1 (after the return of equity to both investors), the Institutional Investor receives 90% of the monthly cash flows and the Developer 10%, proportional to their respective overall equity contributions, until both investors achieve a 12% IRR (all IRR's to be calculated from deal inception/first dollar invested).
2. Hurdle 2, (after Hurdle 1 is satisfied), the Institutional Investor receives 60% of the monthly cash flows until the Institutional Investor achieves an 18% IRR.
3. The Final Split (after satisfying Hurdle 2) allocates monthly cash flow 50% to each investor.
On an overall project basis, the Developer should realize a disproportionate share of the cash flow after the second hurdle is hit. This is what is known as the "promote." The most recent 36 month (37 including Closing) projected cash flows are as follows:
($1,315,567) - Closing
($113,697) - Month 1
($178,397)
($168,667)
($150,365)
($36,506)
$16,662
$120,283
$107,443
$107,443
I realize this is complicated, but this structure is quite common to real estate, private equity, venture capital and hedge fund investments (along with most any joint venture deals with multiple classes of equity participants). The canned software that is out there that performs this type of anlysis is both expensive and rigid, and doesn't typically enable the required sensitivity analysis in structuring a deal.
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Jul 19, 2006
in VBA the RND function generates a random number using uniform distribution (every number is as likely as any other). Is there a function to generate a random number using normal distribution where the numbers closest to the mean are more likely to occure then numbers further away from the mean. I've created the following custom function to generate a random number between two given values using uniform distribution.
Function RandNum(Min As Double, Max As Double) As Double
RandNum = (Max - Min) * Rnd + Min
End Function
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Aug 30, 2007
What formula should I use if I have a list of maturity dates and current investments amounts as of 06/30/07:
06/30/08 10,000
08/31/14 18,000
05/31/08 11,000
07/31/09 25,000
06/30/10 14,000
12/31/25 80,000
and the amounts need to be distributed in columns titled:
Within 1 Yr (From 7/1/07 to 6/30/08)
After 1 to 5 Yrs (From 7/1/08 to 6/30/13)
After 5 yrs (After 7/1/13)
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Nov 27, 2007
I would like to create a random number based on that data.
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Feb 17, 2014
I am in need of a formula to calculate the even distribution of values between two set values over a set number of columns. For example take a look at the attached screenshot. I have the numbers 2.88 and 2.44 and I need to fill in the empty cells between the two with with an even distribution of numbers in between the two (in descending order) over the 8 columns Screen-shot-2014-02-16-at-3.33.08-PM.jpg
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Feb 2, 2010
I'm working on has me making a frequency distribution of the yields column. If you look at M6 on the spreadsheet i'm trying to use the formula:
=COUNTIF($I$6:$I$35, "<=L6")
to represent all yields that are less than or equal to 0, in the next box (M7) I want to represent all yields that are greater than 0% and less than or equal to 1%. etc until I reach 7%, however the original formula isn't working and I don't know whats wrong with it.
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Dec 17, 2009
I would like to create an excel program with Macros.
The program would allow me to find out which distribution a random bunch of data belongs to. For an example, Weibull Distribution, Exponential Distributions etc;
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May 9, 2003
Confidence level calculation.
Background Info: I am doing a weibull analysis on failure data. Some of the data is right censored. I have already run a maximum likelihood estimate to obtain the estimated weibull parameters with Excel's SOLVER function. I am good on this part.
Now I want to calculate these parameters with a 95% confidence interval. I can't seem to find information on calculating confidence intervals with right censored data.
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Nov 10, 2011
I have a Macro in Excel 2010 which emails each tab to a distribution list.
However Outlook asks for permission each time to send the email, is there a way to disable this ?, or get Outlook to grant permission for a set amount of time ?
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Jun 16, 2013
I have a list of employees and their e-mail addresses. There is also a column denoting whether they should be part of an email distribution list or not (if yes, denoted by an asterisk).
I need to aggregate all of the asterisked e-mail addresses in one cell. It also needs to be "active", i.e. having an IF statement for whether or not it has the asterisk and therefore should be included. Last requirement: the addresses need to be separated by a semi-column, then space (for easy copy and paste into Excel) like this:
name@email.com; name@email.com, etc.
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Jun 3, 2014
I saw one of my classmates do quick normal distribution by the click of a button and when I asked her she said she used VBA function of Excel.
This is what I would like to do: Have a macro/VBA in one excel file. And using that excel file do normal distribution for an excel file that's opened in another window.
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Jul 18, 2014
Unique Count situation based on multiple criteria
Scenario: we have agents from different departments who produce different sales on different plan rates
Raw Data
Employee
Plan Rate
Payout pts
[Code]....
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