The problem asks us to determine how much more juice was sold on Sunday than on Saturday. On Saturday, 15 glasses of juice were sold with varying amounts in each glass, represented by the line plot. On Sunday, 15 glasses of juice were sold, each containing $\frac{3}{4}$ L of juice.

1. Problem Description

The problem asks us to determine how much more juice was sold on Sunday than on Saturday. On Saturday, 15 glasses of juice were sold with varying amounts in each glass, represented by the line plot. On Sunday, 15 glasses of juice were sold, each containing $\frac{3}{4}$ L of juice.

2. Solution Steps

First, we need to calculate the total amount of juice sold on Saturday. From the line plot, we can see the following:

- 6 glasses contained $\frac{1}{4}$ L of juice.

- 5 glasses contained $\frac{1}{2}$ L of juice.

- 2 glasses contained $\frac{3}{4}$ L of juice.

- 2 glasses contained $1$ L of juice.

Total juice sold on Saturday = $(6 \times \frac{1}{4}) + (5 \times \frac{1}{2}) + (2 \times \frac{3}{4}) + (2 \times 1)$

$= \frac{6}{4} + \frac{5}{2} + \frac{6}{4} + 2$

$= \frac{3}{2} + \frac{5}{2} + \frac{3}{2} + 2$

$= \frac{3+5+3}{2} + 2$

$= \frac{11}{2} + 2$

$= \frac{11}{2} + \frac{4}{2}$

$= \frac{15}{2}$

$= 7.5$ L

Next, we need to calculate the total amount of juice sold on Sunday. He sold 15 glasses, each containing $\frac{3}{4}$ L.

Total juice sold on Sunday = $15 \times \frac{3}{4}$

$= \frac{45}{4}$

$= 11.25$ L

Finally, we need to find the difference between the amount sold on Sunday and Saturday.

Difference = Juice sold on Sunday - Juice sold on Saturday

$= 11.25 - 7.5$

$= 3.75$ L

3. Final Answer

The person sold 3.75 L more juice on Sunday than on Saturday.