Variable is a data or quantity or factor on which regression is
done.dependent variable is the response or outcome
variable.Independent variables are denoted by X and dependent
variable are denoted by Y in regression.Regression deals with the
phenomena of change in the dependent variable correlating with the
change in independent variable.variables can be of 3rd type, called
as controlled variable.statistics is a method used by regression in
different arenas like financing and investing and other attempts
which establishes relations between X(independent variables) and
Y(dependent variable). statistics is a entire gamuet where
regression analysis is used to find different trends in data
collected.
something which has happened or is now happening, something which
has occurred or is now occuring based on something is coined as
Casual Effect.casual effect can be defined in simple terms as C
being an outcome of D and D has occurred because of C, depending on
how it has worked.
Ideal experiment refers to a type of experiments which are
controlled or uncontrolled are none.experiments works as per
initiative and result are because of the effects of a variable
tested.Ideal experiments maximize the validity of Internal factors
and external factors.
Descriptive statistics gives description of data.
Inferential statistics allows for predicting results from
data.
Casual inferences comprises of a process which draws a conclusion
about a connection which is casual and which is base on the
conditions of an effect that has occurred.Descriptive statistics
generally provide description about population by tables or graphs.
Inferential statistics owes prediction or inferences based on
collected data.
when There is a change in cause the variable effect response is
analysed by the casual inferences.
Explain the difference between a variable and a statistic in the context of a regression Define...
Explain the difference between a variable and a statistic in the context of a regression equation Define the terms "causal effect" and "ideal experiment". Explain the difference between descriptive statistics, inferential statistics, and causal inference.
Briefly define, illustrate or explain at least five of the following important terms. Do not repeat any previously posted by a classmate. 1. Descriptive Statistics 2. Inferential Statistics 3. Population 4. Parameter 5. Sample 6. Statistic 7. Statistical Inference 8. Confidence Level 9. Significance Level 10. Variable 11. Nominal Data 12. Ordinal Data 13. Interval Data 14. Ratio Data 15. Quantitative 16. Qualitative 17. Frequency Distribution 18. Histogram 19. Bar Chart 20. Pie Chart
A) Explain the difference between descriptive and inferential statistics. B) What happens to the margin of error when the confidence level increases. C) Discuss the relationship between sample size and margin of error.
a. Distinguish between description and inference as reasons for using statistics. b. Suppose you have data for a population, such as obtained in a census. Explain why descriptive statistics are helpful, but inferential statistics are not needed. a. Which statement below best distinguishes description from inference? A. Statistical inference provides useful summaries of the data, while description helps make predictions and decide whether observed patterns are meaningful. B. Statistical inference provides useful summaries of data for a sample, while description...
Describe the difference between descriptive and inferential statistics Identify the level of measurement of a variety of variables Describe the difference between measures of central tendency and variability Explain the difference between correlation and causation Describe measurement validity and reliability and name the statistics used to test them Explain the difference between a population and a sample Describe what correlations are and how they are used only answer if you know these. Thanks.
i. What is the difference between sample and population? ii. What is the difference between statistic and parameter? iii. What is the difference between descriptive statistics and statistical inference? iv. Categorical random variable contrast with numerical random variable. v. Compare discrete data from continuous data. saw. Detail the difference between nominal and ordinal scale. vii. Detail the difference between interval and ratio scale. viii. Explain the main reasons for obtaining data. ix. What is the difference between probabilistic and non-probabilistic...
3.) a. Explain the difference between context free and context sensitive languages and grammars. Provide an example of a context free language and a context sensitive language (that is not Context free) b. Explain the differences in the grammar representation (i.e. specifically state what grammar constructs are allowed in a Context Sensitive Grammar as compared to a Context Free Grammar)
Define and explain the difference between the terms “nonrival” and “nonexcludable.” Which of these properties is likely to result in a free-rider problem?
define the terms FDI and FII. Clearly explain the difference between the two concepts.
Define correlation, define causality, and explain the difference between the two