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DSST Intro To Statistics
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DSST Intro To Statistics
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25 Questions

1. Range - standard deviation and variance.

2. When the distribution of the data values tend to be concentrated toward one end of the display or tail of the distribution - while the data values in the other tail are spread out through extreme values resulting in a longer tail

3. Is a sample that has the pertinent characteristics of the population in the same proportion - as they are included in that population

4. To divide the population into 2 or more non-overlapping subsets called strata

5. Parameter

6. Collection of information from a sample

7. A sample which is selected in such a manner - that each data value of the population has a non-zero probability of being selected for the sample

8. Is the portion of the population that is selected for study

9. A method of data collection in which the objects of study are observed in their natural settings and the variables are recorded

10. Population size

11. Population is organized into groups (i.e - neighborhoods/departments) - and sampling unit is selected by a simple random sample

12. An individual data value which lies far (above or below) from most or all of the other data values within a distribution

13. Determine the location of the middle value of all the data values

14. _______________ are numerical measurements that can assume any value between two numbers

15. Disjoint events cannot overlap. They are mutually exclusive if they cannot occur at the same time.

16. The variable value can be represented as isolated points on a number line

17. Null hypothesis

18. A descriptive tool used to visually describe the characteristics and relationships of collections of data quickly and attractively

19. A collection of individuals about which we want to draw conclusions

20. Is the entire collection of all individuals or objects of interest

21. Graph involving pictures of objects in which the size of the object in which the size of the object in the picture represents the relative size of the quantity being represented by the object.

22. The pattern of variation of data. The distribution may be described as symmetrical - positively skewed - or negatively skewed

23. Always use a equal symbol

24. Test use normalcdf(ZTS -999)

25. Sample proportion

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