Publications by Samuel I Kigamba
DATA 606 Final Project
load libraries library(ggplot2) library(XML) library(RCurl) library(knitr) library(dplyr) library(plyr) library(tidyr) library(dplyr) library(ggplot2) library(sqldf) library(tidyr) library(plotly) library(tidyverse) library(tidyselect) library(data.table) library(readxl) library(fBasics) library(lattice) library(MASS) Objective...
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DATA 607 Final Project Presentation
DATA 607 Final Project Samuel I Kigamba December 10, 2019 SECTION ONE - INTRODUCTION Objective of this analysis. Goal: My objective in this project is seeking to understand the relationship between population growth and the crime rates in the United States between the year 1994 to 2018 and to comment and conclude on the overal pattern. Data s...
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DATA 606 Final Project Presentation
DATA 606 Final Project Samuel I Kigamba December 10, 2019 load libraries library(ggplot2) library(XML) library(RCurl) library(knitr) library(dplyr) library(plyr) library(tidyr) library(dplyr) library(ggplot2) library(sqldf) library(tidyr) library(plotly) library(tidyverse) library(tidyselect) library(data.table) library(readxl)...
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DATA 606 Class Presentation
DATA 606 Class Presentation Samuel I Kigamba December 11, 2019 8.31 Body measurements, Part IV. The scatterplot and least squares summary below show the relationship between weight measured in kilograms and height measured in centimeters of 507 physically active individuals. Intro to statistics 4th Edition (a) Describe the relationship betw...
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DATA 607 Assignment 12
Instructions For this assignment, you should take information from a relational database and migrate it to a NoSQL database of your own choosing. For the relational database, you might use the flights database, the tb database, the “data skills” database your team created for Project 3, or another database of your own choosing or creation. Fo...
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DATA 606 Lab 9
Grading the professor Many college courses conclude by giving students the opportunity to evaluate the course and the instructor anonymously. However, the use of these student evaluations as an indicator of course quality and teaching effectiveness is often criticized because these measures may reflect the influence of non-teaching related charac...
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DATA 606 Homework 9
Baby weights, Part I. (9.1, p. 350) The Child Health and Development Studies investigate a range of topics. One study considered all pregnancies between 1960 and 1967 among women in the Kaiser Foundation Health Plan in the San Francisco East Bay area. Here, we study the relationship between smoking and weight of the baby. The variable smoke is c...
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DATA 605 Assignment2
ASSIGNMENT 2 IS 605 FUNDAMENTALS OF COMPUTATIONAL MATHEMATICS - 2015 Problem set 1 Show that \[A^TA \neq AA^T\] in general. (Proof and demonstration.) Lets use R to create a 3x3 matrix of sequence 1 to 9. A = matrix(seq(from = 1, to = 9), 3, 3) A ## [,1] [,2] [,3] ## [1,] 1 4 7 ## [2,] 2 5 8 ## [3,] 3 6 9 W...
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DATA 605 Discussion 7
Question 13, page 199. The Poisson distribution with parameter lambda = .3 has been assigned for the outcome of an experiment. Let X be the outcome function. Find P(X = 0), P(X = 1), and P(X > 1) lambda = 0.3 p_X_eq_0 = exp(-lambda) p_X_eq_0 ## [1] 0.7408182 lambda = 0.3 p_X_eq_1 = lambda*exp(-lambda) p_X_eq_1 ## [1] 0.2222455 Question 3,...
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DATA 605 Discussion 8
Exercises 1 A fair coin is tossed 100 times. The expected number of heads is 50, and the standard deviation for the number of heads is (100 · 1/2 · 1/2)1/2 = 5. What does Chebyshev’s Inequality tell you about the probability that the number of heads that turn up deviates from the expected number 50 by three or more standard deviations (i.e., ...
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