In a data set, the number of observations will always be the same as
the number of elements. (
)
the number of elements. (
)
举一反三
- If a data set has an even number of observations, the median is the<br/>average value of the two middle items. ( <br/>)
- The larger the number of observations in a numerical data set, the larger the number of class intervals needed for a grouped frequency distribution.
- True or False: The larger the number of observations in a numerical data set, the larger the number of class intervals needed for a grouped frequency distribution.
- 14 In triple sequence table of sparse matrix, each triple represents ( ). A: the row number,column number and data value of non-zero elements in the matrix B: the data value of non-zero elements in the matrix C: the row and column numbers of elements in the matrix D: the row number,column number and data value of elements in the matrix
- The following features that do not belong to floating elements are( ) A: Floating elements<br/>will be automatically set to block elements for display B: A floating<br/>element is in the same position in the vertical direction as when it<br/>is not defined as floating C: The floating<br/>element is horizontal, and it will be as close as possible to the<br/>edge of its parent element D: Block elements do<br/>not drill under floating elements and are not covered by floating<br/>elements.