The share in the general population is determined by the formula: 

Were calculated in the course of observations (n = 16), the arithmetic mean (M = 59.8) and standard deviation (σ = 2.0). Find the required minimum number of observations to reduce the standard error (m) by 25%. (t = 2)

What symbol usually denotes the standard deviation? 

A number of nonparametric criteria are also called...

There is no statistical sample type?

In biostatistics, the analysis result should be:

The boundary of the general population at a given degree of probability characterizes

What is the main task of the analysis of variance?

Mode is

From a mathematical point of view, the statistical parameter is optimally rounded (n = 1570):

When deciding on the organization of the sample, what statistical characteristic is considered a criterion?

The degree of closeness of the relationship between indicators can be measured by:

To calculate which indicator is used the formula

is

What are the boundaries in which the general characteristic can be located with a given probability?

What degree of probability corresponds to the confidence interval P ± mp? 

The main requirement for the sample:

The following average value does not depend on the values of the extreme variant:

The variance of an alternative feature is determined by the formula:

Under what conditions, the arithmetic mean most accurately characterizes the average level of the variable

s

The median of the series (Me) is

What statements correspond to the χ2 test:

In the which distribution the arithmetic mean, mode and median will be equal

What function can be used to calculate the root mean square value in MS EXCEL-2013?

What does the size of the sample depend on?  

The essence of the statistical grouping is….

For the calculation of the average, the weighted average formula is applied if the statistics…. 

Were calculated in the course of observations (n = 16), the arithmetic mean (M = 59.8) and standard deviation (σ = 2.0). Find the required minimum number of observations to reduce the standard error (m) by 15%. (t = 2)

To calculate the linear regression coefficient, it must be known:

With an increase in the number of observations, usually the value of the average error  

Which function can be used to calculate the arithmetic mean in MS EXCEL- 2013?

The rule for adding variances is that…. 

With an alternative variation (for example, got sick - did not get sick, happened - did not happen), the date of the disease or fact is an event:

If the statistical series obeys the law of normal distribution, what is the difference between median, mode and arithmetic mean?

Distribution of the total sum of squares into groups, including: the effect of factors A, B, C; the interaction of factors A and B, A and C, B and C, and A, B, C together, as well as for random deviations, is applied when:

The characteristic of the diversity of the studied trait in the variation series is:

If the variance of the sample is reduced by 4 times, then the standard error of the sample...

The law of distribution is...

What kind of graphs of distribution series are used to represent interval variation series?

Selective observation is:

Indicate the relative values: 

For what p, for a small sample, is the null hypothesis true?

When studying the results of one-factors analysis of dispersion, how manydegree of independence are indicated in the Fisher criterion?

Within what boundaries are random fluctuations of the average value of the general population possible with a probability of 95.0%? 

What does the abscissa and ordinate mean when the frequencies polygon is drawn?

The calculation of the required size of the sample with an alternative variation is carried out according to the formula:

The standard deviation is:

What does the abscissa and ordinate mean when a histogram of frequencies is drawn?

When studying the results of three-factors analysis of dispersion, how manydegree of independence are indicated in the Fisher criterion?

Give a definition of the linear correlation coefficient indicator...  

The during measurements in homogeneous groups of subjects obtained the following values for the respiration rate: 12, 14, 13. Give an interval estimate of the mean value with a confidence level of 0.95 (tst = 4.3).

The variation series in the medical literature is called....

is

What function can be used to calculate the geometric mean in MS EXCEL-2013?

If there are 450 men and 550 women per 1000 people of the district's population, then the variance of the alternative attribute is:  

Student's coefficient depends on....

The indicator of the reliability of the difference in average values is:

In which cases does factor A not affect the value of X?

What is the statistical characteristic of the center of frequency distribution in the distribution row? 

What is the name of the average value that falls in the middle of the variation series? 

A simple statistical series is this.......

All of the listed types of communication refer to correlation communication, except

Depending on the type of initial data, the average value can be of the following types:….

The normal distribution is completely determined by two characteristics:

Which of the given formulas determines the value of the total variance?  

With the help of what kind of graphs of the distribution series depict discrete variation series?

When there is a need to calculate the exact level of bond strength, the coefficient is used:

The observation unit is:

The number of cases of morbidity with a specific disease has changed relative to the year,%: in 2009 - 79%; 2010 - 82%; 2011 - 87%; 2012 - 96%. The average monthly rate of change in incidence can be calculated using the average formula: 

The statistical feature is…. 

The standard deviation is calculated as….

Variantis…

To establish whether these factors affect the variability of the trait or not and which of them have a greater specific weight in the total variability allows:

If you know the values of the attribute for each unit of the population and the number of units with this or that attribute value, then the formula is applied

... this is the process of forming homogeneous groups on the basis of dividing the statistical population into parts or combining the studied units into private aggregates according to the characteristics that are essential for them:

For what types of features is the Spearman coefficient usually used?

The reliability of the arithmetic mean depends on the following elements [all but one is true]:

What are the consequences of identifying a large number of groups in the variation series?

What does the term "accept a hypothesis" mean?  

The change in the values of the attribute in the units of the population in space or in time is called….  

s

s

A series of any measurements is called:

What is the name of the ability of the sample to assess the general population?

In what limits can the value of the correlation coefficient fluctuate? 

The following methods of analysis are used to study statistical relationships:

Based on the data on the incidence of influenza in each region of the country, it is necessary to determine the average incidence of influenza throughout the country. What kind of medium should you apply: 

One-factor, two-factor, three-factor are:

As the difference between the actual and expected numbers increases, the value of χ2:

The average is  

For a random error m = 0.966 with a probability of P = 0.95, determine the boundaries of the confidence interval

What is the correlation coefficient if the relationship is not close? 

Mode is called:

What are the elements of the distribution variation series?

What are the main elements of statistical distribution series.

Were calculated in the course of observations (n = 16), the arithmetic mean (M = 59.8) and standard deviation (σ = 2.0). Find the required minimum number of observations to reduce the standard error (m) by 50%. (t = 2)

Nonparametric test for comparing dependent samples...

The during measurements in homogeneous groups of subjects obtained the following values for heart rate: 71, 73, 74. Give an interval estimate of the mean with a confidence level of 0.98 (tst = 7).