Question

3. Construct a stem and leaf dlagram, a frequency hlstogram, and a relatlve frequency hlstogram for the following data set. For the hlstograms use classes 51-60, 61-70, and so on. 69 92 68 77 80 70 85 88 85 96 93 75 76 82 100 53 70 70 82 85

Answer 1

> x=c(69,92,68,77,80,70,85,88,85,96,93,75,76,82,100,53,70,70,82,85);
> stem(x)

The decimal point is 1 digit(s) to the right of the |

   5 | 3
   6 | 89
   7 | 000567
   8 | 0225558
   9 | 236
10 | 0

> hist(x)

$wELkpACPHt1oAAAAABJRU5ErkJggg==$

> histo=hist(x)
> barplot(histo$counts/length(x),col="white",space=0)->bp
> axis(1,at=c(bp),labels=histo$mids)
> title(ylab="Relative Frequency",xlab="X")
> histo=hist(x)
> barplot(histo$counts/length(x),col="white",space=0)->bp
> axis(1,at=c(bp),labels=histo$mids)
> title(ylab="Relative Frequency",xlab="X")

$UwAAAABJRU5ErkJggg==$