Presentation of Data — Economics STD 11 Commerce — Question

Universe in Statistics means:

Sum of square of the deviations about mean is:

Indicate the most appropriate alternative from the multiple choices provided against question.
The most suitable average for qualitative measurement is:

Mean deviation can be computed from:

Before using secondary data, the investigator should satisfy himself as regards to

The supply curve of a firm shows

Daily pocket money of five students of class XI are as follows: 20, 25, 40, 45, 60. What will be the range of the data?

Which measure of dispersion is not affected by the presence of extreme observations?

Classification of data on the basis of time period is called:

The data collected on the height of a group of students after recording their heights with a measuring tape are: