Question

4) A company that makes hair-care products had 3,000 people try a new shampoo. Of the3,000 people, 6 had a mild allergic reaction. What percent of the people had a mild allergicreaction?

Answer 1

To find the percentage of people who had a mild allergic reaction we just need to find the fraction by dividing the number of people with the allergic reaction by the total number of people who tried the product:

$\frac{6}{3000}=0.002$

Then, 0.002 of the total people experienced an allergic reaction. To convert the fraction into a percentage, we just need to multiply it by 100:

$0.002\cdot100=0.2\text{ \%}$

Answer: 0.2% of the people who tried the product had a mild allergic reaction.