http:rtisuccessorg. Progress monitoring, one of the essential. components of Response to Intervention (RTI), is. characterized by repeated measurement of academic. performance that is conducted at least monthly. The. process may be used to assess studentsâ academic. performance over time, to quantify student rates of.
Calculating the Air Quality Index. The AQI is calculated by converting measured pollutant concentrations to a uniform index which is based upon peer-reviewed scientific evidence of the health effects associated with a pollutant.
Example 1: Calculate the mean and variance of the sample data from the frequency table in Figure 1. Figure 2 â Calculation of mean and standard deviation from frequency table. The required calculation is displayed in Figure 2.Here cell F11 contains the formula =D11/E11, which calculates the mean, and cell G14 contains the formula =(D14-E14*F14)/(E14-1), which calculates the variance.n this case the midpoint of each interval is assigned the value xi. Example 2: Calculate the mean and variance for the data in the frequency table in Figure 4. Figure 4 â Calculations for a frequency table with intervals. x x â¤ 10, etc.