APA (7th ed.) Citation

(2013). Standard deviation of data in a frequency table. Math Tutor DVD LLC..

Chicago Style (17th ed.) Citation

Standard Deviation of Data in a Frequency Table. Texas, USA: Math Tutor DVD LLC., 2013.

MLA (9th ed.) Citation

Standard Deviation of Data in a Frequency Table. Math Tutor DVD LLC., 2013.

Warning: These citations may not always be 100% accurate.