Refer to an 8-Digit Student Id at a Large University

question 85

Short Answer

refer to an 8-digit student id at a large university. The eighth digit is a check
digit equal to the sum of the first seven digits modulo 7.
-Suppose the first digit of the student id X923 4562 is illegible (indicated by X). Can you tell what the first digit has to be?

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Definitions:

Retroactive Interference

A phenomenon where newly acquired information interferes with the recall of previously learned information.

Memorization

Memorization is the process of committing information to memory for later retrieval through practices such as repetition or employing mnemonic devices.

Repressed Memories

Memories that have been unconsciously blocked due to being associated with a high level of stress or trauma.

Hypnosis

A trance-like state of focus and concentration achieved with the help of a therapist or by self-induction, used for therapy or entertainment purposes.