grouped variance

The means of each group of a two-way analysis of variance for two independent variables are plotted as shown in the graph. What does the graph represent about the interaction of the variables? => Disordinal interaction or Ordinal interaction or No interaction..

The means of each group of a two-way analysis of variance for two independent variables are plotted and shown in the three graphs. Which of these represents an ordinal interaction? Consider the interaction to be significant. => Graph 2 or Both graph 1 and graph 2 or Graph 3 or G..

A survey was conducted in a city to find the number of people (in %) of different age groups who did not complete their high school. The results are as shown in the frequency distribution table. Age group Percentage of people 25 - 34 12 35 - 44 18 45 - 54 23 55 - 64 37 65 - 74 4..

Standard Deviation - of a statistical data is defined as the positive square root of the arithmetic mean of the squared deviations of items from their arithmetic mean of the series under consideration. The standard deviation is denoted by s (sigma). The standard deviation is also known as Root Mean..

. For an individual series, For a frequency distribution, Variance = (S.D.) 2 Coefficient of variation (C.V) Let s 1 and s 2 be the S.D of the two groups containing n 1 and n 2 items respectively. Let a..