Question

select the correct answer. a pharmaceutical company claims that the use of their new supplement will prevent adults from acquiring colds. the following two - way frequency table displays the results of a study conducted to test the companys claim.

colds and supplements	cold	no cold	total
no supplement	161	115	276
total	269	237	506

what percentage of adults were taking the supplement and had a cold?
a. 47%
b. 21%
c. 40%
d. 50%

Explanation:

Step1: Identify relevant values

The number of adults taking the supplement and having a cold is 108, and the total number of adults is 506.

Step2: Calculate the percentage

The formula for percentage is $\frac{\text{Part}}{\text{Total}}\times100\%$. So, $\frac{108}{506}\times 100\%\approx 21.34\% \approx 21\%$.

Answer:

B. 21%