weekly vocab

 1. Histogram-a diagram consisting of rectangles whose area is proportional to the frequency of a variable and whose width is equal to the class interval.

2. Focal Length-the equivalent distance in a compound lens or telescope.

3. Metadata-a set of data that describes and gives information about other data.

4. Megabyte-a unit of information equal to 220 bytes or, loosely, one million bytes.

5.Gigabyte-a unit of information equal to one billion (109) or, strictly, 230 bytes.

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