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Author:Abdelshafi Bekhit, school-book of high school for mathematics, Province Kuwait of Kuwait and the same in Arabic probably.
Description: This example shows the sum of all of the list divided by the number of items in the list and this list is a statistical sample symbolized wiht the Arabic identifier س (SEEN), and enunciated س bar set in an overall RTL context.

See also Online School, and ELearning-Ministry of Education, Egypt and Online math lessons (Bahrain).

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Created by: I drew it

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س ¯ = ٧ + ١١ + ٩ + ٥ ٤ = ٣٢ ٤ = ٨