1. B
In statistics and related fields, a similarity measure or similarity function is a real-valued function that quantifies the similarity between two objects.
2. A
The range, another measure ofspread, is simply the difference between the largest and smallest data values. The range is the simplest measure of variability to compute. The standard deviation can be an effective tool for teachers.
3. C
There is no gap between the upper boundary of one class and the lower boundary of the next class. The lower class boundary is found by subtracting 0.5 units from the lower class limit and the upper class boundary is found by adding 0.5 units to the upper class limit.
4. C
A terminating decimal is usually defined as a decimal number that contains a finite number of digits after the decimal point.
