Is the point of this graph to suggest that after 2011/12 there were more terrorist attacks than the yearly mean of the sample? If so I feel like just comparing average yearly attacks in the two groups (before/after 2011) may be more digestible than using z scores.
DisastrousTalk1257 t1_jccko07 wrote
Reply to Frequency of Global Terrorist Attacks 2000-2020 [OC] by thedapdude
Is the point of this graph to suggest that after 2011/12 there were more terrorist attacks than the yearly mean of the sample? If so I feel like just comparing average yearly attacks in the two groups (before/after 2011) may be more digestible than using z scores.