Name the average DDR3 speed for model e-350
CREATE TABLE table_55085 (
    "Series ^" text,
    "Model" text,
    "CPU clock ( MHz )" text,
    "CPU cores" real,
    "TDP ( W )" text,
    "L2 cache (KiB)" text,
    "Radeon cores" real,
    "DDR3 speed" real
)
SELECT AVG("DDR3 speed") FROM table_55085 WHERE "Model" = 'e-350'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Name the average DDR3 speed for model e-350 ### Input: CREATE TABLE table_55085 (
    "Series ^" text,
    "Model" text,
    "CPU clock ( MHz )" text,
    "CPU cores" real,
    "TDP ( W )" text,
    "L2 cache (KiB)" text,
    "Radeon cores" real,
    "DDR3 speed" real
) ### Response: SELECT AVG("DDR3 speed") FROM table_55085 WHERE "Model" = 'e-350'