Weiss, N. A. (1999). Elementary statistics (4th.ed.). Addison-Wesley.
Tohutoru Kātū Chicago (17th ed.)Weiss, Neil A. Elementary Statistics. 4th.ed. Massachusetts: Addison-Wesley, 1999.
Tohutoro MLA (9th ed.)Weiss, Neil A. Elementary Statistics. 4th.ed. Addison-Wesley, 1999.
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