# Dennis Gimlin

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**Content Feed**

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Compute Area from Fixed Sum Cumulative Probability

In Matlab the code v = rand(1,3); v = v/sum(v); is sometimes suggested as a convenient means of generating three rando...

environ un an ago

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Rate of event occurence: find percentiles of the distribution (for smallish rates)

*In this problem you need to find the 5th and 95th percentiles of a Poisson distribution defined by parameter _μ_ (the mean rate...

environ un an ago

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Mean = Standard Deviation

Create a series with following properties; # All of the members should be positive integer # Mean of the series should be in...

environ un an ago

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Given n, create n random numbers such that their standard deviation is also n.

Given n, create n random numbers such that their standard deviation is also n.

environ un an ago

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Eliminate Outliers Using Interquartile Range

Given a vector with your "data" find the outliers and remove them. To determine whether data contains an outlier: # Identi...

environ un an ago

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Guess the number I'm thinking of

In this game you are competing against two other people to guess the number that I'm thinking of. # I randomly choose an *i...

environ un an ago

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Chess probability

The difference in the ratings between two players serves as a predictor of the outcome of a match (the <http://en.wikipedia.org/...

environ un an ago

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Cumulative probability of finding an unlikely combination

This is a supplemental problem to the <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition CryptoMath> ...

environ un an ago

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Probability of red tulips (at both ends of a row)

I planted tulip bulbs in a row on my flower bed. I thought that I had planted white tulips all. However, later, it turned out t...

environ un an ago

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Probabilities - More brains than luck

This problem is related to <http://it.mathworks.com/matlabcentral/cody/problems/596-more-luck-than-brains Problem 596. More luck...

environ un an ago

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Test Driven Solution - Probability Problem 3

*Problem:* Without any Cody cheats, write code that passes the test suite. *Hint:* The test suite gets samples from the proba...

environ un an ago

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Test Driven Solution - Probability Problem 2

*Problem:* Without any Cody cheats, write code that passes the test suite. *Hint:* The test suite gets samples from the proba...

environ un an ago

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Test Driven Solution - Probability Problem 1

*Problem:* Without any Cody cheats, write code that passes the test suite. *Hint:* The test suite gets samples from the proba...

environ un an ago

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Generating random matrix with given probability mass function

Inspired by <http://www.mathworks.com/matlabcentral/cody/problems/2356-simulating-the-selection-of-a-state-with-given-probabilit...

environ un an ago

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Simulating the selection of a state with given probabilities

Lets say we have 3 different states [1,2,3] with the probabilities of occurrences of each state is given as [0.5 0.2 0.3]. Which...

environ un an ago

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What are the odds?

Two numbers, A and B are drawn randomly and uniformly on [-R,R]. What is the probability that A*B < A+B. Your function should ...

environ un an ago

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If you prick us, do we not bleed?

While doing some quick sewing to fix up your child's Halloween costume, you accidentally jab your finger with the needle. Refle...

environ un an ago

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Probability of Choosing a Red Ball

Given two jars of red and blue balls, find the probability of choosing a red ball from Jar 1 after going through the steps. ...

environ un an ago

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Throwing Dice - Will You Be Eaten By The Dragon?

You and a dragon have agreed to let dice rolls determine whether it eats you or not. The dragon will roll a single die, of x ...

environ un an ago

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Unique dice configurations

Given a number of dice N and the number of sides on each die S, write a MATLAB function that will output how many unique permuta...

environ un an ago

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German tank problem

The <http://en.wikipedia.org/wiki/German_tank_problem German tank problem> is a well-known statistical problem that attempts to ...

environ un an ago

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Penny flipping - calculate winning probability (easy)

Two players are playing a fair penny flipping game. For each flip, the winner adds one penny from the loser's collection to his/...

environ un an ago

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Coin change combinations.

Using only pennies (1), nickels (5), dimes (10), quarters (25), half dollars (50), and dollars (100), how many different combina...

environ un an ago

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Does the coin touch the line?

If we throw a coin that has a diameter of d, its center will land in a grid n x m. What is the probability that the coin land...

environ un an ago

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Coin Tossing: Probability of Same Heads for N tosses

A pair of physicists toss a coin n times each. What is the probability that they tossed the same number of heads? *Input:*...

environ un an ago

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The almost-birthday problem.

This is a harder version of the birthday problem. Now, you will have to determine the probability that two or more people in a r...

environ un an ago

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Calculate the probability that at least two people in a group share the same birthday.

Calculate the probability that at least two people in a group share the same birthday. Given an integer input n, return to 0.015...

environ un an ago

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The Birthday Phenomenon

First off, leap years are not being considered for this. In fact the year that people are born shouldn't be taken into considera...

environ un an ago

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Don't be mean. Be nice!

For this problem, you will be given a range of single digits R, and a separate number K. You job is to calculate the mean of al...

environ un an ago

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Determine if a Given Number is a Triangle Number

*Description:* Determine if the elements of an input array are triangle numbers and return the result as an array with the sa...

environ un an ago