Preeranat

Last seen: 2 months ago | Active since 2026

Followers: 0 Following: 0

Statistics

Feeds

Solved

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...

2 months ago

Solved

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

2 months ago

Solved

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.

2 months ago

Solved

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...

2 months ago

Solved

Guess the number I'm thinking of (Part 1)
In this game you are competing against two other people to guess the number that I'm thinking of. I randomly choose an integer ...

2 months ago

Solved

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> ...

2 months ago

Solved

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...

2 months ago

Solved

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 random var...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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 ...

2 months ago

Solved

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. ...

2 months ago

Solved

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...

2 months ago

Solved

German tank problem
The German tank problem is a well-known statistical problem that attempts to estimate the maximum of a discrete distribution fro...

2 months ago

Solved

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/...

2 months ago

Solved

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

2 months ago

Solved

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...

2 months ago

Solved

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: N % n...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

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...

2 months ago

Solved

Integer sequence - 2 : Kolakoski sequence
Get the n-th term of Kolakoski Sequence.

2 months ago

Solved

Alternating sum
Given vector x, calculate the alternating sum y = x(1) - x(2) + x(3) - x(4) + ...

2 months ago

Solved

Golomb's self-describing sequence (based on Euler 341)
The Golomb's self-describing sequence {G(n)} is the only nondecreasing sequence of natural numbers such that n appears exactly G...

2 months ago

Solved

Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
Given a number _n_, return the terminal value of the number chain formed by summing the square of the digits. According to the P...

2 months ago