Answer:
8 out of every 10, or 4 out of every 5
Step-by-step explanation:
since 80% of the population has shoplifted at least once (most under the age of 18).
because 80% = 80/100 which can be reduced to 8/10 (neater way to say it) or 4/5
regularly basis wise, only 10% do it (day to day, routinely, commonly)
hope this helps:)