Tommy is repeating a series of digits in the order in which he heard an experimenter read them. The experimenter is testing the capacity of Tommy's memory. Tommy should be able to repeat about digits correctly. a. short-term; 4
b. short-term; 7
c. sensory; 4
d. sensory; 7

Short term; 7

Explanation:

The activity Tommy has been placed to carry out aims at testing His short term memory, If he's able to understand things instantly.

i honestly speaking this is too long

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