Publications by JORIELYN S. MANLA
CHAPTER 8 EXERCISES
CHAPTER 7 PROBABILITY 7.1 Defining Probability Disjoint or mutually exclusive outcomes* The number variable described whether no number (labeled none), only one or more small numbers (small), or whether at least one big number appeared in an email (big). ## [1] 3921 ## ## none small big ## 549 2827 545...
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CHAPTER 8 EXERCISES
CHAPTER 8 DISTRIBUTIONS 8.1.2 Standardizing with Z-scores Calculate the probability P(Z<0.43) - i.e. what is the probability of standard normal variable taking a value less than 0.43? ## [1] 0.6664022 Calculate the \(Z\)-score satisfying P(Z<z)=0.80 - i.e. what value is at the 80th percentile of a standard normal distribution? ## [1] 0.8416...
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Document
CHAPTER 5 SCATTERPLOTS 5.1 Creating a Basic Plot ## Sepal.Length Sepal.Width Petal.Length Petal.Width Species ## 1 5.1 3.5 1.4 0.2 setosa ## 2 4.9 3.0 1.4 0.2 setosa ## 3 4.7 3.2 1.3 0.2 setosa ## 4 4.6 3.1 1.5 ...
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Chapter 4 Boxplots
CHAPTER 4 BOXPLOTS 4.1 Creating a Basic Boxplot 4.2 Optional Parameters 4.3 Horizontal Box Plots 4.4 Advanced Boxplot Features trt1 trt2 ctrl 10 10 10...
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Chapter 3 Histograms
CHAPTER 3 HISTOGRAMS 3.1 Creating a Basic Histogram ## 'data.frame': 30 obs. of 2 variables: ## $ weight: num 4.17 5.58 5.18 6.11 4.5 4.61 5.17 4.53 5.33 5.14 ... ## $ group : Factor w/ 3 levels "ctrl","trt1",..: 1 1 1 1 1 1 1 1 1 1 ... 3.2 Optional Parameters 3.3 Changing Bin Sizes ## 'data.frame': 1000 obs. of 1 variable: ## $ va...
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STAT 50 MIDTERM EXAMINATION
library(readxl) Warning: package 'readxl' was built under R version 4.2.3 library(dplyr) Attaching package: 'dplyr' The following objects are masked from 'package:stats': filter, lag The following objects are masked from 'package:base': intersect, setdiff, setequal, union library(rstatix) Warning: package 'rstatix' was built under R ve...
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Stat 50 Midterm Exam
Question 1. Q1<-Jorielyn%>% filter(AveFK != "NA")%>% mutate(AveFKFrequency = ifelse(AveFK<=1.49, "Very Poor", ifelse(AveFK<=2.49, "Below Average", ifelse(AveFK<=3.49, "Average", ifelse(AveFK<=4.49, "Above Average", "E...
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Quiz#2 STAT 50
Load packages Load data 1. Using the variable “sleptim1” and “marital” determine the following: 1.1 Number of observations that are “NA” in the variable “sleptim1”; # A tibble: 1 × 2 sleptim1 n <int> <int> 1 NA 7387 1.2 Number of observations having at most 5 hours of sleep; [1] 52498 # A tibble: 2 × 2...
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STAT 50 QUIZ#1
Setup setwd("E:/QUIZ #1 STAT SOFTWARE/") getwd() ## [1] "E:/QUIZ #1 STAT SOFTWARE" Load packages library(ggplot2) library(dplyr) Load data load("brfss2013.Rdata") Refer to the provided data in our google classroom. Part 1: Research questions Come up with at least three research questions that you want to answer using these data. You should ph...
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