Signs that do not have quantitative expression and are recorded as a text belong to the attribute signs

Value of varying sign, which is in the middle of ranged distribution row

If all frequencies of the row of distribution increase or decrease in the constant number of times k, the arithmetic middling will increase or decrease in k times

Intervals in which minimum and maximum values of a sign are known we call: Choose one correct answer:

Which value does the dispersion of constant value equals?

What type of average is used for the generalized characteristic of the sign when  individual values of the studied sign and volume of phenomena are known, and the frequencies are unknown

If to all values of varying sign add or subtract one and non-zero number, the arithmetic average:

What value of coefficient of variation shows that variation is moderate:

Statistics – is:

Set the correspondence of determination of relative indexes: