50-100

Arda Emre HAN · 76問 · 2年前

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

95.0% probabilities

To reduce the sampling error, the number of observations must be

enlarge

The smaller the number of observations, the larger the average error

Not considered reliable for scientific research

68.3% probability

The correlation coefficient between the incidence rate of the population and the rate of hospitalization for cardiovascular pathology per 1000 surveyed urban population is r = + 0.28 (p <0.001). Is it possible to draw the following conclusion based on the value of this coefficient

addiction - direct and strong

A feature is called qualitative if it

is taken into account according to the presence of its properties among members of the studied group

Dispersion is called

measure of the spread of a random variable

The standard deviation is called

the root-mean-square indicator of the deviations of the values of the attribute from the arithmetic mean in the aggregate

Samples by their size are:

relatively small

To assess the relationship of qualitative characteristics, one should use

χ2 test

Nonparametric communication indicators

do not depend on the distribution law

The use of nonparametric methods in comparison with parametric ones has

less restrictions on the source data

The association coefficient allows you to estimate

the strength of the connection between features

The conclusion about the deviation of the empirical distribution from the normal can be made on the basis of the assessment of the following values

asymmetry, kurtosis

The conclusion about the deviation of the empirical distribution from the normal can be made on the basis of the assessment of the following values

asymmetry, kurtosis

Spearman's correlation coefficient

To compare the average values of a trait in two empirical populations using the Student's t-test, you need to know

mean values, standard errors, number of observations of a trait in each of the populations

For the application of the Student's t-test to decide the significance of the difference between two empirical sets, the necessary conditions are

the quantitative nature of the trait, the normal distribution option

For the application of the χ2 criterion without Yeitz's correction for deciding the significance of the difference between two empirical sets, the necessary conditions are

the number of observations in the collection is not less than 50 and not less than 5 in a separate class of the variational series

Nonparametric difference criteria can be used when comparing populations

by quantitative and qualitative characteristics

Determine which age group the employee at the age of 45 belongs to, if the grouping has the following form: Group I: up to 25 years old; II group 25-34; III group 35 - 44; IV group 45-54; V group 55-64; VI group over 65 years old

to the fourth group

An example of what series is the distribution of 2nd year students by gender?

attributive series

The formula R = Xmax - Xmin describes

range of variation

The most common type of distribution in nature of mass processes and phenomena in biology are:

normal distribution

Correlation analysis is -

quantifying the tightness of the relationship between the signs

With a sample of n = 36, the standard deviation has a value of 24. What is the standard error?

For diagnostic tests, it is used...

sensitivity, specificity

In the analysis of variance, for the adoption of the null hypothesis, it is determined

ratio of intergroup variance to intragroup variance

linear regression

determining the minimum sample size

In 1899 he developed the foundations of the science called biometrics:

Galton

The set of separate objects that differ from each other and at the same time are similar in some respects are called:

aggregate

A synonym for the term "dispersion" is:

variation

Variants are numerical values:

random variable

Theoretically, an infinitely large or approaching infinity totality is called:

general

A set of objects is characterized by characteristics. This variation is called:

quality

A particular case of a qualitative variation is:

alternative

The numbering of the variant in the variation series is called:

ranking

The class with the greatest frequency was named:

modal

When studying the graphical distribution, the following is usually observed in normally distributed variational series:

the frequency of the variant gradually decreases towards the edges of the variation

The class "46-48" is modal. In this case, the mod equals:

The number of degrees of freedom in a sample of 41 options is equal to:

Weighted arithmetic mean is used in the following cases:

a complex set

Each separate phenomenon, taken by itself, seems to be accidental. But taken in bulk, they reveal:

statistical patterns

A mathematician worked under the pseudonym Student:

Gosset

The ratio of the size of the sample (n) to the total size of the general population (N) is called:

alternative sampling

Possible intervals within which the arithmetic mean of the general population can be located are called:

confidential

The "null hypothesis" is based on the following statement:

there are no statistically significant differences between the studied indicators

The Three Sigma Rule states:

these variations with a probability of 0.997 lie in the interval M ± 3σ

The more pups in the litter of multiple animals, the less each of them weighs. This is an example:

negative correlation

The correlation coefficient is zero. It means that:

the change in both signs occurs independently

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gıdalanma final ilk 30

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1-20

1-20

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20-40

20-40

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Epi 91-123

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97-112

97-112

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44-86

44-86

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87-130

87-130

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biyokimya 170

biyokimya 170

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mikrop 11-15

mikrop 11-15

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gas gagrene

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biyofiz 125

biyofiz 125

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sinav

sinav

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1-12

1-12

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patanat

patanat

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Patanat son 60

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1-42

1-42

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umumi cerrahi

umumi cerrahi

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derma 60-90

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derma 90-120

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radyo ilk 10

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patfiz 400-460

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patfiz

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genel cerrah ets 1-50

genel cerrah ets 1-50

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deri 50-100

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son

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emre

emre

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