( sorry for the wired question ) researchers in New York city did a study on ice cream sales and murder rates in the city. this graph was included in the results

after seeing this graph as a picture with the headline "ice cream sales causes murder rates to increase" shared on social media by her best friend's second cousin, the president of a prominent HOA in the Hamptons decided to petition to ban the sale of ice cream so that people would stop being murdered .

this is the question - compare and contrast what you see on the graph.

second part to the question - was the HOA president right for doing so ? what other factors could have contributed to both the rise in ice cream sales and murders? is this an example of correlation or causation?