Question about Texas Instruments TI-30X-IISTK Scientific Calculator
Press 2ND [CSR] to clear the stat data.
For each data point, enter the number followed by SIGMA+
If you have grouped data, enter the number followed by 2ND [FRQ] followed by the frequency then SIGMA+
Press 2ND [sigma x n] for the population standard deviation or 2ND [sigma x n-1] for the sample standard deviation.
Posted on Mar 10, 2010
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Posted on Jan 02, 2017
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