I do not have the passage, but here are the meanings that the word presume can have:
- to assume something to be true without really knowing if it is true or not.
- to be arrogant about what you have.
If you want to understand the meaning of a word in the context of a passage, it is important to read the whole text so you can identify what the word specifically means in that passage.
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- The population being all iPhone 4 users is True
- The 2% denote the sample statistic.
<h3>Sample statistic</h3>
This refers to the figures which are computed through the available data for
an item. Examples include:
The population being all iphone 4 user is true because it is the item that has
the data provided and is being talked
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A group of organs are called a system
See the attached picture:
Answer in the picture below