Publications by 2194168 GARNA, JAN KATHLENE RAY L.
PracticeExercise7-1GARNA
PRACTICE EXERCISE 7-1: The Normal Probability Distribution library(ggplot2) PROBLEM 1 Find the area under the normal curve to the left of z=1.34. pnorm(1.34) ## [1] 0.9098773 z<-seq(from =-4,to =+4,length.out=1000) normal<-data.frame(x=z,y=dnorm(z,mean=0,sd=1)) stdnormal<-ggplot(normal,aes(x,y))+geom_line()+labs(title="Standard Normal Distribu...
2155 sym R (5154 sym/46 pcs) 15 img
LRA7-1GARNA
LEARNING REINFORCEMENT NO. ACTIVITY 7-1: The Normal Probability Distribution library(ggplot2) PROBLEM 1 Suppose family incomes in a town are normally distributed with a mean of P25000 and a standard deviation of P6000 per month. What is the probability that a family has an income between P14,000 and P32,500? pnorm(32500,mean=25000,sd=6000)-pnor...
2498 sym R (2838 sym/42 pcs) 7 img
LongTest2Garna
LONG TEST 2. PART II. library(readr) library(pander) library(tidyverse) ## -- Attaching packages ----------------------------------------------------- tidyverse 1.3.0 -- ## v ggplot2 3.3.2 v dplyr 1.0.2 ## v tibble 3.0.3 v stringr 1.4.0 ## v tidyr 1.1.2 v forcats 0.5.0 ## v purrr 0.3.4 ## -- Conflicts ---------------------...
4110 sym R (2190 sym/28 pcs) 2 img
LRA11-3GARNA
LEARNING REINFORCEMENT ACTIVITY NO. 11-3: Multiple Linear Regression library(readr) REQUIREMENT A Develop an estimated simple linear regression equation to predict the weekly gross revenue from the amount of television advertising. movie<-read.csv("movie.csv") head(movie) ## revenue television newspaper ## 1 96 5.0 1.5 ## ...
3774 sym R (2216 sym/11 pcs)
LRA11-2GARNA
LEARNING REINFORCEMENT ACTIVITY NO. 11-2: Simple Linear Regression library(readr) PROBLEM 1 Suppose data were collected from a sample of 10 branches of a pizza restaurant chain located near college campuses. Problem 1a Plot the scatter diagram. pizza<-read.csv("pizza.csv") head(pizza) ## X Y ## 1 2 58 ## 2 6 105 ## 3 8 88 ## 4 8...
5460 sym R (5453 sym/43 pcs) 4 img
LRA11-1GARNA
LEARNING REINFORCEMENT ACTIVITY NO. 11-1: Correlation Analysis library(readr) library(ggpubr) ## Loading required package: ggplot2 PROBLEM 1 The dean of a business school undertakes a study to relate starting salary after graduation to grade point average GPA in major courses. He then randomly selects records of 10 students shown in the accompa...
2450 sym R (3186 sym/27 pcs) 4 img
LongTest3Garna
LONG TEST 2. PART II. library(readr) library(BSDA) ## Loading required package: lattice ## ## Attaching package: 'BSDA' ## The following object is masked from 'package:datasets': ## ## Orange library(pander) library(tidyverse) ## -- Attaching packages -------------------------------------------------------------------------------------...
6441 sym R (2627 sym/29 pcs) 2 img