How do u get rid of the suffix "X" and "1" ?[SOLVED]

Question

I am tring to solve the Titanic Survivors challenge in R. My answer is correct but the column suffix "X" and Row number "1" are making it wrong. What should I do to remove them.

My attempt:
https://code.sololearn.com/cJQlLZUQwnTH/?ref=app

Answer 1

I think they intend us to use tapply() to solve the task. tapply() returns array.

In your attempt, you use a data.frame

Answer 2

Lisa THANK YOU VERRY MUCH!!!