Answer:
c. 60.9%
Step-by-step explanation:
Given:
The probability P that a person responds to an advertisement can be modeled by the function:
where represents number of days since the advertisement first appeared.
To find the probability that a person has responded after 20 days.
Solution:
In order to find the probability that a person has responded after 20 days, we will plugin in the formula given.
We have:
Plugging in
Thus, probability after 20 days = 0.6094
The probability in percentage can be given = = 60.9%