Question 4 confuses me

Fair! It’s simpler than most people are taking it. The only thing that makes this graph color-blind friendly is the line type. Looking at the code, the line type is defined in a single line with made ~25 keyboard strokes. Making things colorblind friendly is rarely more work; most people make non-friendly graphs due to their lack of awareness and motivation.

Question 11 won’t let me check if there is alt text

The alt text won’t be printed on/near the graph but instead will be given as output like I had ran

2 + 5
## [1] 7

Question 14 is throwing up errors

There needs to be a “.” after the tilda

eg facet_grid(changepoint ~ ., scales = ‘free_x’)