Question

A study shows influenza vaccine is 71.4% effective in preventing a particular type of influenza.If 15,422 people receive the vaccine, how many would not be protected and would be likely to get influenza?

Answer 1

Explanation:

71.4/100 × 15422 = 11, 011

Number of people not protected = 15, 422 - 11, 011 = 4, 411