

Email : sausan.ramadhani@student.matanauniversity.ac.id
RPubs : https://rpubs.com/sausanramadhani/
Jurusan : Statistika
Address : ARA Center, Matana University Tower
Jl. CBD Barat Kav, RT.1, Curug Sangereng, Kelapa Dua, Tangerang, Banten 15810.
Soal 1
Buatlah fungsi untuk menghitung integral tentu dan tak tentu
Jawaban Soal 1
library(mosaicCalc)
IntegralTentudanTakTentu <- function(x)
{
Fungsi=makeFun(x^2+3*x~x)
Integral= antiD(Fungsi(x)~x)
Integral_Tentu=Integral(1)-Integral(5)
Integral_Tak_Tentu=Integral(1:8)
return (cat(c("Integral Tentu :", Integral_Tentu, "\n",
"Integral Tak Tentu :", Integral_Tak_Tentu)))
}
IntegralTentudanTakTentu(x)
## Integral Tentu : -77.3333333333334
## Integral Tak Tentu : 1.83333333333333 8.66666666666667 22.5 45.3333333333333 79.1666666666667 126 187.833333333333 266.666666666667
Soal 2
Buatlah fungsi untuk menghitung Luas Lingkaran, Keliling Lingkaran, dan, Volume Bola
Jawaban Soal 2
LuKelVol <- function(phi,r)
{
luas_lingkaran = phi*r*r
keliling_lingkaran = 2*phi*r
volume_bola = (4/3)*phi*r*r*r
return(cat(c("luas lingkaran:",
luas_lingkaran, sep = "\n",
"keliling lingkaran:", keliling_lingkaran, sep = "\n",
"volume bola:", volume_bola)))
}
LuKelVol(3,5)
## luas lingkaran: 75
## keliling lingkaran: 30
## volume bola: 500
Soal 3
Buatlah fungsi untuk menghitung Nilai Maksimum, Minimum, Rata-rata, Median, Mode, Variansi, Standard Deviasi pada data berfrekuensi
Jawaban Soal 3
| berat badan |
frekuensi |
| 30 |
2 |
| 40 |
5 |
| 50 |
7 |
| 60 |
4 |
| 70 |
3 |
| 80 |
1 |
| 90 |
5 |
berat_badan<-seq(30,90,10)
frek<-c(2,5,7,4,3,1,5)
komet=data.frame(berat_badan,frek)
MaksMinRat<-function(x,frekuensi)
{
n=27
tbm=49.5
d1=2
d2=3
interval=10
nilai_maks=max(x)
nilai_min=min(x)
mean=sum(berat_badan)/n
median=round(sum(berat_badan)+1) / 2
mode=tbm+interval*(d1/(d1+d2))
b=x-mean
c=sum((b**2)*frekuensi)
variansi=c/(sum(frekuensi)-1)
standart_deviasi=sqrt(variansi)
return(cat("nilai maksimum :", nilai_maks,"\n",
"nilai minimum :", nilai_min,"\n",
"rata-rata :", mean,"\n",
"median :", median,"\n",
"modus :", mode,"\n",
"variansi :", variansi,"\n",
"standart deviasi :", standart_deviasi,"\n"))
}
MaksMinRat(komet$berat_badan,komet$frek)
## nilai maksimum : 90
## nilai minimum : 30
## rata-rata : 15.55556
## median : 210.5
## modus : 53.5
## variansi : 2321.795
## standart deviasi : 48.18501
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