0.4 % of total people had allergic reaction
Solution:
Given that company that makes hair-care products had 8000 people try a new shampoo
Of the 8000 people 32 had allergic reactions
To find: percent of the people had allergic reaction
From given information,
Total number of people = 8000
Number of people with allergic reactions = 32
percent of the people had allergic reaction is given as:


Thus 0.4 % of total people had allergic reaction