Question

A company that makes hair-care products had 5,000 people try a new shampoo. Of the 5,000 people, 15 had a mild allergic

Answer 1

A manufacturer of hair care products tested a new shampoo on 5,000 people, and 0.3 percent of the participants experienced a moderate allergic response. 15 of the 5,000 individuals experienced a minor allergic response.

Define percentage.

The easiest approach to utilizing percentages is to compare two numbers while setting the second amount's base to 100. Consider for a moment that we are interested in the proportion of working women. A percentage (%) is a number that represents how many out of 100 it is and may also be written as a decimal or fraction. To convert a percentage to a fraction, place the percentage's value in the numerator and 100 in the denominator.

Given,

15 of the 5,000 individuals experienced a minor allergic response.

Dividing the percentage of the population that had a minor reaction.

15 ÷ 5000

0.003

Multiplying it by 100 for percentage:

0.003 × 100%

0.3%

0.3% percent of the people had mild allergic reactions.

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