In an expansion of the ideas from Section 2.8 Measures of Median and Mean on Grouped Data, we know examine how one can find our measures of variance and standard deviation from discrete data prese...In an expansion of the ideas from Section 2.8 Measures of Median and Mean on Grouped Data, we know examine how one can find our measures of variance and standard deviation from discrete data presented in a frequency or relative frequency table.
What if we have data grouped over intervals instead of discrete single-value groups as previously? This section will help us roughly estimate the range, variance, and standard deviation measures of th...What if we have data grouped over intervals instead of discrete single-value groups as previously? This section will help us roughly estimate the range, variance, and standard deviation measures of the distribution since we have lost some information about the specific data values.
