Excel formula 查找包含特定值的单元格范围

我尝试在类似以下表格上使用百分位数方法：

+--------+-------------+-------+
| Grade  | StudentName | Score |
+--------+-------------+-------+
| Grade1 | StudentA    | 55    |
| Grade1 | StudentB    | 65    |
| Grade1 | StudentC    | 46    |
| Grade2 | StudentA    | 77    |
| Grade2 | StudentB    | 55    |
| Grade2 | StudentC    | 62    |
| ...    | ...         | ...   |
+--------+-------------+-------+

我正在尝试在下面的矩阵中计算每个等级的四分位数

+---------+-----------------+-----------------+-----+ 
|         | 25th Percentile | 50th Percentile | ... |
+---------+-----------------+-----------------+-----+
| Grade 1 |                 |                 |     |
| Grade 2 |                 |                 |     |
| Grade 3 |                 |                 |     |
| ...     |                 |                 |     |
+---------+-----------------+-----------------+-----+

问题是百分比公式需要一个单元格数组。如何动态查找包含Grade1的单元格数组/单元格范围？

F2的公式：

=QUARTILE(IF($A$2:$A$7=$E2,$C$2:$C$7,""),F$1)

然后按住CTRL+SHIFT+ENTER键，使其成为带花括号的数组公式