Given a list of students and their grades, calculate the average grade of the class.
To calculate the average grade of the class, we take the sum of all the student's grades and divide that by the total number of students. 

```python
students = [{"name": "John", "grade": 85}, 
            {"name": "Jill", "grade": 75}, 
            {"name": "Bob", "grade": 95}, 
            {"name": "Sally", "grade": 80}]
            
total_grades = sum([student["grade"] for student in students])
average_grade = total_grades / len(students)

print(f'The average grade of the class is {average_grade:.2f}')
```

Output:
```
The average grade of the class is 83.75
```

The average grade of the class is 83.75.
[{name: "John", grade: 85}, {name: "Jill", grade: 75}, {name: "Bob", grade: 95}, {name: "Sally", grade: 80}]
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.

### Instruction:
Given a list of students and their grades, calculate the average grade of the class.

### Input:
[{name: "John", grade: 85}, {name: "Jill", grade: 75}, {name: "Bob", grade: 95}, {name: "Sally", grade: 80}]

### Response:
To calculate the average grade of the class, we take the sum of all the student's grades and divide that by the total number of students. 

```python
students = [{"name": "John", "grade": 85}, 
            {"name": "Jill", "grade": 75}, 
            {"name": "Bob", "grade": 95}, 
            {"name": "Sally", "grade": 80}]
            
total_grades = sum([student["grade"] for student in students])
average_grade = total_grades / len(students)

print(f'The average grade of the class is {average_grade:.2f}')
```

Output:
```
The average grade of the class is 83.75
```

The average grade of the class is 83.75.