тест №2 Статистика, часть 2 - МЭИ

Problem number 1

Conditions: - Is it true:

Answer student: - - - a variation called the variability in the feature quantity units of statistical set

- A variation called the average value of the statistical units feature sosovokupnosti

- A variation called the absolute value of the characteristic statistical population

- Variation is called the relative value of a statistical population characteristic

- A variation called the group of units of a statistical population

Problem number 2

Conditions: - What do you think is the difference between the variation in space and time?

Answer student: - - - difference between the two does not exist

- The difference is that the variation in space - statistic (ie, constant), and in-BPE to time - dynamic

- Variation in space - volatility characteristic of individual territories and variation in time - change characteristic values \u200b\u200bin different periods or times

- The difference is in the fact that the variation in the space seen by one basis, and in time - according to another feature

- The fundamental difference between the concepts of no

Problem number 3

Conditions: - Measures of variation - is:

Answer student: - - - absolute figures

- The relative performance

- Absolute and relative performance

- Grouped figures

- Mean values

Problem number 4

Conditions: - For absolute figures variations include:

Answer student: - - - coefficient oscillations, linear coefficient of variation coefficient of variation

- The scope of variation, the average linear deviation, variance, standard deviation

- The coefficient of the oscillations, the magnitude of variation, variance

- The standard deviation, the linear coefficient of variation

- Linear coefficient of variation, the magnitude of variation, variance

Problem number 5

Conditions: - For relative performance variations include:

Answer student: - - - coefficient oscillations, linear coefficient of variation coefficient of variation

- The scope of variation, the average linear deviation, variance, standard deviation

- The coefficient of the oscillations, the magnitude of variation, variance

- The standard deviation, the linear coefficient of variation

- Linear coefficient of variation, the magnitude of variation, variance

Problem number 6

Terms and conditions: - The formula writes:

Answer student: - - - swing variations

- The average linear deviation

- Coefficient of oscillations

- Linear coefficient of variation

- Dispersion

Objective number 7

Conditions: - Formula average linear deviation:

Answer student: - - -

-

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-

-

Task number 8

Terms and conditions: - The formula writes:

Answer student: - - - coefficient oscillations

- Linear coefficient of variation

- Coefficient of variation

- Dispersion

- The scope of variation

Objective number 9

Terms and conditions: - The formula of linear coefficient of variation:

Answer student: - - -

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-

-

Problem number 10

Conditions: - What is the variance of length of service (X) business:

Answer student: - - - 8

- 10

- 8.76

- 9.76

- 7.68

Test №2 Statistics, part 2, 72 jobs, rent MEI