The arithmetic mean is computed by ( )
A: finding the value that occurs most often
B: finding the middle observation and dividing by 2
C: summing the values and dividing by the number of values.
D: selecting the value in the middle of the data set.
A: finding the value that occurs most often
B: finding the middle observation and dividing by 2
C: summing the values and dividing by the number of values.
D: selecting the value in the middle of the data set.
举一反三
- The value that occurs most often in a set of data is called the mean
- If a data set has an even number of observations, the median is the<br/>average value of the two middle items. ( <br/>)
- Ecosystem service values can be divided into use values and non-use values. Where use values include ( ). A: direct value B: indirect value C: option value D: existence value
- The influence of weights on the weighted arithmetic mean is determined by () A: Value size of each group of character values B: What is the absolute number of weights C: Proportion of the number of units in each group to the population number of units D: What is the population number of units
- A(n) ______ is a specific set of data values along with a set of operations on those values.