What is the part of a line that contains two points and all other points between them ?
1 answer:
Answer:
A segment
Step-by-step explanation:
A line is a straight path that is infinitely long.
A line segment is a section of a line. It consists of two points, which mark the beginning and the end of the segment, and all points in between.
In the diagram, the segment consists of the points A and B and all the points between them.
The line itself extends infinitely both left and right.
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Answer:
Step-by-step explanation:
the mean is given by:
In our case this is:
side note: the main difference between sample mean and population mean is in the 'context'. However, the method to calculate them is the same.
By context I mean: if this the items are taken from some larger category for example: the ages of a few 'students' from a 'class'. Here 'students' are the sample from a larger set that is 'class'. The mean of the 'few students' will be called sample mean. In contrast, if we take the mean of the ages of the whole class then this is called population mean. (population mean == mean of the whole set)
In our case we aren't told exactly where these numbers come from, is this the whole set or a sample from it, the lack of context allows us to assume that the mean can either be population mean or sample mean. So we can safely use any symbol or
.