I'm getting an error message (could not find function "describe") when attempting descriptive statistical analysis, here's my reprex...

```
library(tidyverse)
library(dplyr)
data.frame(
row.names = c("Mazda RX4",
"Mazda RX4 Wag","Datsun 710",
"Hornet 4 Drive","Hornet Sportabout","Valiant",
"Duster 360","Merc 240D"),
mpg = c(21, 21, 22.8, 21.4, 18.7, 18.1, 14.3, 24.4),
cyl = c(6, 6, 4, 6, 8, 6, 8, 4),
hp = c(110, 110, 93, 110, 175, 105, 245, 62)
)
#> mpg cyl hp
#> Mazda RX4 21.0 6 110
#> Mazda RX4 Wag 21.0 6 110
#> Datsun 710 22.8 4 93
#> Hornet 4 Drive 21.4 6 110
#> Hornet Sportabout 18.7 8 175
#> Valiant 18.1 6 105
#> Duster 360 14.3 8 245
#> Merc 240D 24.4 4 62
describe(mtcars,
mean_mpg = mean(mpg),
sd_mpg = sd(mpg))
#> Error in describe(mtcars, mean_mpg = mean(mpg), sd_mpg = sd(mpg)): could not find function "describe"
```

Any help in solving this would be much appreciated.