81. R1.23 computed by
82. Given
$$\sum $$dxdy = 2350, $$\sum $$d2x = 8250, $$\sum $$d2y = 724, then r will be
$$\sum $$dxdy = 2350, $$\sum $$d2x = 8250, $$\sum $$d2y = 724, then r will be
83. MIS evaluation includes
84. Probability theory does not include
85. The density function is a measure of the concentration of probability within
86. SSAD stands for
87. Match the items of List-I with the items of List-II and choose the correct answer.
List-I
List-II
a. Mean forecast error
1. Mean of absolute deviations of forecast demands from actual demand values
b. Mean absolute deviation
2. Mean of the squares of the deviations of forecast demands from actual demand values
c. Mean square error
3. Mean of the deviations of the forecast demands from actual demand
d. Mean absolute percent error
4. Mean of the percent deviations of the forecast demands from the actual demand
| List-I | List-II |
| a. Mean forecast error | 1. Mean of absolute deviations of forecast demands from actual demand values |
| b. Mean absolute deviation | 2. Mean of the squares of the deviations of forecast demands from actual demand values |
| c. Mean square error | 3. Mean of the deviations of the forecast demands from actual demand |
| d. Mean absolute percent error | 4. Mean of the percent deviations of the forecast demands from the actual demand |
88. Match the following.
List-I (Degree of Correlation)
List-II (Measurement)
a. No correlation
1. 0
b. Perfect correlation
2. +1
c. Moderate correlation
3. 0.6 - 0.75
d. Very high correlation
4. 0.9 or more
| List-I (Degree of Correlation) | List-II (Measurement) |
| a. No correlation | 1. 0 |
| b. Perfect correlation | 2. +1 |
| c. Moderate correlation | 3. 0.6 - 0.75 |
| d. Very high correlation | 4. 0.9 or more |
89. If the decision process are . . . . . . . ., the information technology choice will weigh in favour of those systems, where the acquisition, processing, analysis and decision making will be at distributed nodel points.
90. The characteristics of a programming language are
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