Challenge 4: Sales (Medium)
This challenge expects you to apply a function over every cell in a Dataframe.
We'll cover the following...
We'll cover the following...
Problem definition
| US Sales | UK Sales | Egypt Sales | |
|---|---|---|---|
| The Beatles | 10k | 20k | 5k |
| Black Sabbath | 3k | 15k | 3k |
Given a new dataset that maps bands to how much sales they’ve made in different markets, you ...