Question

A researcher has participants choose between three advertisements. She finds that 54 prefer Ad A, 86 prefer Ad B, and 60 prefer Ad C. The probability or proportion of participants preferring Ad B is

Answer 1

0.43 is the required probability.

Explanation:

We are given the following in the question:

Number of participants that prefer Ad A = 54

Number of participants that prefer Ad B = 86

Number of participants that prefer Ad C = 60

Total number of participants =

`54 + 86+ 60 = 200`

We have to find the proportion of participants preferring Ad B.

Proportion =

`=\frac{\text{Number of participants that prefer Ad B}}{\text{Total number of participants}}\\\\=(86)/(200) = 0.43`

Thus, 0.43 is the proportion of participants preferring Ad B.