A company that makes hair care products had 4,000 people Try a new shampoo out of the 4000 people 16 and a mile allegically action. What percent of the people? I don't allergic reaction.
To find the percentage of people who had an allergic reaction, we can use the formula:
Percentage = (Number of people with allergic reaction / Total number of people) * 100
Number of people with allergic reaction = 16
Total number of people = 4000
Percentage = (16 / 4000) * 100
Percentage = 0.4%
Therefore, the percentage of people who had an allergic reaction is 0.4%.