Acompany that makes hair-care products had 3 comma 000 people try a new shampoo. of the 3 comma 000 people, 12 had a mild allergic reaction. what percent of the people had a mild allergic reaction?

0.4%

Step-by-step explanation:

In a company that makes hair-care products, if 3,000 people try a new shampoo and 12 people had a mild allergic reaction, the percentage of people that had mild allergic reaction can be expressed as;

Number of people allergic/total people that tried a new shampoo × 100%

= 12/3000×100

= 1200/3000

= 0.4%

This shows that 0.4% of the people had a mild allergic reaction