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Required practical activity 9: measure the population size of a common species in a habitat. Use sampling techniques to investigate the effect of a factor on the distribution of this species.
Mean is the average value, calculated by adding all the observations and dividing by the number of observations.
Median is the middle value of a list.
Mode is the most common value in a list.
Median is the middle value of a list.
Mode is the most common value in a list.
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