[mathematics:statistics] Forum Topics

Hi, can someone help me solve this please I have tried so hard but can't figure it out? In past years, approximately 20% of all U.S. families purchased potato chips at least once a month. You are interested in determining the fraction of all U.S. families that currently purchase potato …

heloo i need help on how to tackle the problem. some basic ideas and keypoints.

[CODE] //I need to make a class that calculate the mean and standard deviation. I have to test my program with an external file containing about 300 data. My program doesnt return the correct valuesAny help? #include <cstdlib> #include <iostream> #include <cmath> #include <fstream> using namespace std; class Statistics{ double …

**Bold Text Here**Scenario A die has six faces labelled 1, 2, ..., 6. When a die is rolled, any face has equal chance of showed up. A class die has, among other methods, the method roll() which rolls the die and the method showFace() which reports the face of the …

Hi there, I have a class definition like : class Student{ String name; int sub1; int sub2; int sub3; //... } I have list of all students. I want to get count, average, min, max etc using IntSummaryStatistics. Below is the code for sub1: IntSummaryStatistics sub1Summary = students.stream().collect(Collectors.summarizingInt(s -> s.sub1)); …

My assignment is to write a c++ program which does statistical analysis of a group of exam scores. Up to 100 scores may be entered. All scores should be validated within the range of 0-100. A (-1) will be entered to signify the end of data. Scores may be decimal, …

Hi there... I'm having some difficulties in my studies. We were asked by our teacher to make a program on how to calculate Frequency Distribution Table and also with the calculations of Mean, Median, and Mode. Can I ask some help ??

Create a C++ console applications to compile the following statistics on a list of integers:  minimum value;  maximum value;  median value;  arithmetic mean;  absolute deviation  variance (of a discrete random variable);  standard deviation (of a finite population);  mode (including multi-modal lists).  …

i want to calculate the standard deviation of an arrayed elements using functions

I am trying to write a program to calculate mean & standard deviation. I sort of figured out how to find mean (it is not correct yet, so i am going to need help on this part as well) but how do you do standard deviation? import java.util.Scanner; public class …

Hello all, I apoligise if this is the incorrect forum but it seemed to be most relevant. Basically I am doing some statistical analysis on game data using standard deviation and upon analysing the data I seem to have forgotten how to work out my percentages so here is to …

If X[0], X[1],...., X[N - 1] is a list of N numbers and the mean (average) of these numbers is M, then we define their standard deviation to be the square root of the number: ((X[0] - M)^2 + (X[1] - M)^2 + ... + (X[N] - M)^2) / (N …

Hi All, I have the following code to read in an XML file and to get the basic statistical information. I am having problems trying to get it working. Here is what I have so far: [code=java] import java.util.*; import java.io.File; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import org.w3c.dom.Document; import org.w3c.dom.Element; import …

Hi folks, I'm prepared to learn SAS Statistical Analysis [url]http://www.sas.com/technologies/analytics/statistics/stat/index.html[/url] for analysis and reporting of pharmaceutical data. But SAS is NOT free. Are there similar statistical software from Open Source which can be download for use without licence fees. R-Project is great. But it seems NOT for pharmaceutical application. Please …

Hi, Ive been trying to calculate standard deviation from the data in my datagridview.I have manage to work out how to get to the last value but would like to display in a chart so i need to have some kind of running total like you have in Excel. For …

Hi! I have been trying to regress a random effect model, using SAS and have bumped into quite some probs. For some reason, my output displays a standarddeviation of 0 for my covariance matrices. Please find below a specification of my model and my output. My random variable is "bedrijf"(=company) …

hi I would like to be able produce statistics on my web page by counting the numbers of rows in my sql database. for example. within my database i have 10 defects in my table called "defects". 9 defects are major, 1 defect is a minor. is there a way …

Hi....... Can anyone provide with the statistical approach fro the summarization for the texts>>>>>> Thank U :) Please anyone can u reply>>>>>>

Hi All, Me again..;) I have a general question of performing the Statistical operations on a given list of data elements. Like standard deviation , Mean, Median. Are there any dlls or APIS to do that. I have been using dotnetCHARTING.dll in which there are certain inbuilt functions which used …

Hi, Greetings just joined today, thought I had previously. I am excited that I am returning to the world of statistics and am looking to see how C++ can be tied into this. Peace.

I need to make a java app that computes and prints mean and standard deviation for a list of integers x1 through xn. If anyone can help out, point me in the right direction even, that would be awesome, I get intimidated by these math problems when it comes to …

I'm trying to make the program able to receive more than one input and then give the results of all the imputs together. Sofar, rightnow I'm only able to input one number and the program will immediately print out the result. I want to continue to imput until I press …

I'm currently a 4th-year CS major. This is not to say I took many CS courses, but I still need to take classes on Operating Systems, System programming, S/W Engineering, AI, Database, etc. So, far, my programming skills are pretty trivial. I know C++/Java but can only write simple trivial …