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Irregularity must be recognizeed as a fact of life in making physiologcal measurements 


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The average value of a set of data
sum of values of data/ number of values of data
A/n 


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the arithmatic differenece between the lowest and highest values in the group 


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the value that occurs most frequentin the group of measurements 


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the data point in the middleof the data set when the data are put in numerical order 


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Gives a relative indicationof the dispertion of the data from the mean 


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The average of the squared differences from the Mean. 


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Definition
 Comparing two means of two related groups.
 Significant difference between the two means



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(magnification by ocular lens) multiply (magnification of objective lens) 


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the distance between the nearest and farthest objects in a scene 


Term
FEILD OF VIEW/ FEILD DIAMETER 

Definition
The diameter of the field of an optical light microscope is the field number, which is the diameter of the field view in mm measured at the intermediate image plane
[image] 


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the amount of detail you can see in an image. 


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Definition
 bar graphs compare data in a simple format consisting of rectangular bars.
 line graphs plotted peaks and dips on the grid allow you to monitor and compare improvement and decline.
 a pie chart is a popular form of data comparison, consisting of a circle that is split into parts.



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Definition
A variable (often denoted by x) whose variation does not depend on that of another.
CONTROLLED 


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Definition
A variable (often denoted by y) whose value depends on that of another.
MEASURED 


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particles moving from a higher concentration area to a lower concentration area 

