A surfer visited his favorite beach 50 times and recorded the wave height each time in the following table. 
(See the Excel Data File.)
A) Calculate the average wave height.
B) Calculate the variance and standard deviation wave height for this sample.
Definitions:
Interphase
The phase of the cell cycle during which a cell grows, duplicates its DNA, and prepares for division.
Centrioles
Cylindrical structures in animal cells that play a key role in cell division.
DNA Replicates
The process by which a cell copies its DNA prior to cell division, ensuring that each new cell receives a complete set of genetic information.
Chromosomes
Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of DNA, which carries genetic information.
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