Average Study Time Calculation

A local college surveyed students about their time spent studying each week. The data collected from 50 students is as follows:

• 10 students study 5 hours
• 15 students study 10 hours
• 20 students study 15 hours
• 5 students study 20 hours

Using this data, calculate the average number of hours studied per week by the surveyed students. Express your answer as a single number (to the nearest tenth) in the grid below.