Answer: There is a probability of 65% who showed up for an appointment.
Explanation:
Since we have given that
Percent of people who do not show up for their appointment = 35%
Percent of people who show up and completer the study = 55%
Percent of people who show up but do not complete the study = 10%
Probability of showing up for an appointment is given by
![55\%+10\%\\\\=65\%\\\\=(65)/(100)\\\\=0.65](https://img.qammunity.org/2020/formulas/mathematics/high-school/njkjp1jig3wh1bxdx5t699xp4sv6szcjbe.png)
Hence, there is a probability of 65% who showed up for an appointment.