Drawing of a random sample of X observations

Question

I am currently working on the Boston data. So I downloaded the library(MASS) data(Boston). As I found on numerous websites there is a famous assignment on this based on this regression model (OLS) medv = β0 + b1crim + b2chas + ε. I now want to draw a random sample of X observations e.g. 30 and save the subsample as object ZZ. How can I do this?

Answer 1

Using package dplyr:

library(dplyr)
ZZ <- Boston |> sample_n(30)

Answer 2

You probably want

data("Boston", package = "MASS")
keep_rows <- sample(nrow(Boston), size = 30, replace = FALSE)
ZZ <- Boston[keep_rows, ]