According to the chart, which conclusion is justified about sunscreen sales and beach visits?
Beach visits caused sunscreen sales to rise.
Sunscreen sales caused more beach visits.
The indexes prove both totals were equal.
The two indexes moved in similar patterns.✓Bonne réponse
Explication
Both indexes rise through July and then fall through September, so their month-to-month patterns are similar. The chart records association only; it provides no evidence that either series causes changes in the other.
