Thursday, January 30, 2020
Thursday, January 23, 2020
Tuesday, January 21, 2020
Online R B1 Demos
https://dkeithwilliams.github.io/onlineRclass/
senic=read.csv("http://www.ics.uci.edu/~sternh/courses/210/senic.csv",header=T)
p19=c(5, 2, 3, 6, 1, 2, 4, 5, 1, 3)
p19^2
sum(p19)
(sum(p19))^2
sum(p19^2)
s2=(130-(1024/10))/(10-1)
sqrt(s2)
var(p19)
sd(p19)
p45=c(3, 9, 10, 2, 6, 7, 5, 8, 6, 6, 4, 9, 22)
sort(p45)
quantile(p45,probs = c(.25,.50,.75),type=6)
l25=.25*(13+1)
l25
l75=.75*(13+1)
l75
9+1.5*4.5
4.5-1.5*4.5
senic=read.csv("http://www.ics.uci.edu/~sternh/courses/210/senic.csv",header=T)
p19=c(5, 2, 3, 6, 1, 2, 4, 5, 1, 3)
p19^2
sum(p19)
(sum(p19))^2
sum(p19^2)
s2=(130-(1024/10))/(10-1)
sqrt(s2)
var(p19)
sd(p19)
p45=c(3, 9, 10, 2, 6, 7, 5, 8, 6, 6, 4, 9, 22)
sort(p45)
quantile(p45,probs = c(.25,.50,.75),type=6)
l25=.25*(13+1)
l25
l75=.75*(13+1)
l75
9+1.5*4.5
4.5-1.5*4.5
Thursday, January 16, 2020
Chapter Two Exercises and link to Chapter 2 of B1 Book
Chapter Two
Problems 2.1, 2.3, 2.13abc, 2.15abc, 2.19(omit d, e), 2.21, 2.43, 2.45
Key concepts on page 87
Click below for link to chapter 2 of B1 book:
https://drive.google.com/open?id=1W4dOzlgwCVyixlbGsZW3nEKUA7RBloxT
Problems 2.1, 2.3, 2.13abc, 2.15abc, 2.19(omit d, e), 2.21, 2.43, 2.45
Key concepts on page 87
Click below for link to chapter 2 of B1 book:
https://drive.google.com/open?id=1W4dOzlgwCVyixlbGsZW3nEKUA7RBloxT
Tuesday, January 14, 2020
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