could not find function "summarise"

General
1

summarise(titanic_dataset, survival=sum(Survived)/nrow(titanic_dataset)*100)

Here's my code. Copy & paste from my teacher. What is wrong?

2

before using a function from a library in a new session, you must load the library, this can be done with either library() or require()
i.e.

library(tidyverse)

then your code that will use summarise

3

Yes, that it typed first.

4

did you not only type that, but also send it to the console first ?
what happens when you do

dplyr::summarise(titanic_dataset, survival=sum(Survived)/nrow(titanic_dataset)*100)
5

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