Standard Deviation Formula, Statistics, Variance, Sample and Population Mean
10:21
YouTubeThe Organic Chemistry Tutor
Standard Deviation Formula, Statistics, Variance, Sample and Population Mean
This statistics video tutorial explains how to use the standard deviation formula to calculate the population standard deviation. The formula for the sample standard deviation is also provided. This video shows you the variables associated with the sample mean and the population mean. In addition, it discusses how to calculate variance from ...
2.2M viewsFeb 12, 2017
Progressive Lens Benefits
1.7K views · 18 reactions |  Progressive Lenses – One Lens, Three Benefits! part 1 | Dhaka Optical Pavilion- ZEISS Vision Partner | Facebook
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ZEISS SmartLife Lenses | Most customized ZEISS lenses for today's busy eyes.
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The EF100mm f/2.8L Macro IS USM has long been a favourite lens for close-up macro and product photography. So how does the newer RF100mm f/2.8L Macro IS USM fare? Besides having a shorter closest focusing distance yielding a higher magnification ratio, it also has a Spherical Aberration Control Ring that allows you to vary your bokeh effect between soft-edged and hard-edged. Read more about the benefits the RF100mm f/2.8L Macro IS USM has over its EF counterpart: https://bit.ly/3UiEtoK | Canon I
0:17
The EF100mm f/2.8L Macro IS USM has long been a favourite lens for close-up macro and product photography. So how does the newer RF100mm f/2.8L Macro IS USM fare? Besides having a shorter closest focusing distance yielding a higher magnification ratio, it also has a Spherical Aberration Control Ring that allows you to vary your bokeh effect between soft-edged and hard-edged. Read more about the benefits the RF100mm f/2.8L Macro IS USM has over its EF counterpart: https://bit.ly/3UiEtoK | Canon I
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