Publications by Mahmud Hasan Al Raji
Data624_MAHMUDHASAN
#This assignment involves solving problems 2.1, 2.2, 2.3, 2.4, 2.5, and 2.8 from the Hyndman online Forecasting book. library(fpp3) ## Registered S3 method overwritten by 'tsibble': ## method from ## as_tibble.grouped_df dplyr ## ── Attaching packages ────────────────────────...
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Data608_Story03
Story-3 details: The purpose of this Story is to answer the question, ” Do stricter firearm control laws help reduce firearm mortality?” To do the visualizations I will need to: Access the firearm mortality data from the CDC using an available API (https://open.cdc.gov/apis.html) Create a 5 point Likert scale categorizing gun control laws f...
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Data608-Story1-Assignment
Introduction: This assignment is about to finding story (Data Visualization(s)) that covering the following questions: Is the allocation equitable based on the population of each of the States and Territories, or is bias apparent? Does the allocation favor the political interests of the Biden administration? For the conducting the analyses, the...
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Data605_Final_Project
Problem-1: Probability Density 1: X~Gamma. Using R, generate a random variable X that has 10,000 random Gamma pdf values. A Gamma pdf is completely describe by n (a size parameter) and lambda (\(\lambda\), a shape parameter). Choose any n greater 3 and an expected value (\(\lambda\)) between 2 and 10 (you choose). set.seed(123) n <- 4 lambda...
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Data605_HW14
The general form of the Taylor series expansion: \(f(x)\) \(=\) \(\int_{n=0}^{\infty}\) \(f^n(a)/n!(x-a)^n\) So, the Taylor series of the function f(x) centered at 0: \(f(x)\) \(=\) \(\int_{n=0}^{\infty}\) \(f^n(0)/n!(x^n)\) \(=\) \(f(0)\) + \(f^1(0)/1!(x)\) + \(f^2(0)/2!(x^2)\) +\(f^3(0)/3!(x^3)\)+……+\(f^n(0)/n!(x^n)\)———–(1) Find the...
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Data605_Assignment13
Ques-1: Use integration by substitution to solve the integral below: \(\int\) \(4e^{-7x}\) \(dx\) Ans-1: Let, \(u = -7x\) By taking derivative of u with respect to x we get, \(du = -7dx\) or, \(dx = -du/7\) Now, we have, \(\int\) \(4e^{-7x}\) \(dx\) Putting \(-7x = u\) and \(dx = -du/7\) we get, \(-4/7\) \(\int\) \(e^{u}\) \(du\) \(=\) \(-4/7\) ...
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Data605_Assignment12
In this assignment, a real world WHO dataset from 2008 is provided. The dataset is found as csv file format which is then stored on my github account for conducting the required analysis. Load library library(ggplot2) Get the dataset who_data<-read.csv("https://raw.githubusercontent.com//Raji030//data605_hw12_dataset//main//who.csv") head(who_...
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Data605_Assignment11
Assignment: Using the “cars” dataset in R, build a linear model for stopping distance as a function of speed and replicate the analysis of your textbook chapter 3 (visualization, quality evaluation of the model, and residual analysis.) In this assignment, I have used the ‘cars’ dataset that has come with R. Then, I have built a linear r...
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Data605_Assignment10
Smith is in jail and has 1 dollar; he can get out on bail if he has 8 dollars. A guard agrees to make a series of bets with him. If Smith bets A dollars, he wins A dollars with probability .4 and loses A dollars with probability .6.Find the probability that he wins 8 dollars before losing all of his money if (a) he bets 1 dollar each time (timi...
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Data605_Assignment09
1.(Exercise-11,Page-363) The price of one share of stock in the Pilsdorff Beer Company (see Exercise 8.2.12) is given by Yn on the nth day of the year. Finn observes that the differences Xn = Yn+1 − Yn appear to be independent random variables with a common distribution having mean µ = 0 and variance σ2 = 1/4. If Y1 = 100, estimate the pro...
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