What is the main difference between probability density function (PDF) and histogram?
A: The calculation methods for histogram and PDF are different
B: The values on histogram curve are larger than the values on PDF curve
C: The shapes of histogram curve and PDF curve are different
D: The integration of the PDF curve equals 1, the step of ordinate axis in the histogram is 1
A: The calculation methods for histogram and PDF are different
B: The values on histogram curve are larger than the values on PDF curve
C: The shapes of histogram curve and PDF curve are different
D: The integration of the PDF curve equals 1, the step of ordinate axis in the histogram is 1
举一反三
- The difference between a histogram and a frequency polygon is:
- The difference between a histogram and a frequency polygon is: A: the frequency polygon is reported as a percent, a histogram does not report percents. B: the histogram shows frequencies while a frequency polygon shows cumulative frequencies. C: the bars in a histogram and a frequency polygon cannot be adjacent. D: open-ended classes can be accommodated with a frequency polygon.
- The<br/>vertical axis of the histogram is () A: Frequency B: Relative<br/>frequency C: Relative<br/>frequency density D: The<br/>values of a variable E: The<br/>intervals of a variable
- The absorption curve is ( ). A: The curve of the relationship between the concentration of light-absorbing substance and absorbance. B: The curve of the relationship between the concentration of light-absorbing substance and transmittance. C: The curve of the relationship between the wavelength of incident light and the thickness of light-absorbing substance solution. D: The curve of the relationship between the wavelength of incident light and the absorbance of a light-absorbing substance.
- Which<br/>of the following is the Y-axis of the histogram?() A: frequency B: relative<br/>frequency C: relative<br/>frequency density D: values<br/>of a variable E: rate