Test your basic knowledge |

DSST Intro To Statistics

Subjects : dsst, statistics
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Lowercase sigma; population standard deviaition






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






3. One extreme value can affect it dramatically.






4. A method of experimentation in which you can control as many variables as possible in order to isolate the effects of a response variable






5. _______________ are numerical values that can assume only a limited number of values






6. Sample size or number of trials






7. Members of the population select themselves by volunteering






8. Create a sample by using data from population members that are readily available






9. Represents categories - and is nonnumerical in nature






10. A flaw in the sampling procedure that makes it more likely that the sample will NOT be representative of population






11. To calculate the percentile take the number of values less than x - divide by total number of values and times by 100.






12. Probability of event A






13. (largest data value) - (smallest data value)






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






15. Is denoted by 'N' - is the number of data values in the population






16. Level of measurement- Is the interval level modified to include the inherent zero starting point (where zero indicates that none of the quantity is present). For values at this level - differences and ratios are both meaningful. (Example) Ages of sur






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






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






19. Sample standard deviation






20. Sum of the values






21. Sample mean






22. Occur when one of them affects the probability of the other.






23. A method of data collection where the researcher selects a sample from the population and measures the variable of interest






24. Level of measurement- Involves data that may be arranged in some order - but differences between data values either cannot be determined or are meaningless. (Example) Questions on a survey are scored with integers 1 thru 5 with 1 representing strong






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






26. Type of bar graph that shows frequency distributions






27. Middle value of a set of data values after they've been arranged in numerical order - 1. First arrange data values in numerical order 2. For odd # of data values - the median is the middle data value 3. For even # of data values - the median is the m






28. Capital sigma; summation






29. Data values that are either much larger or much smaller than the general body of data- they should be included in an analysis unless they are the result of human or other error






30. A number that is used to describe a characteristic of a sample - such as a sample average - is called a __________.






31. Square the standard deviation and to find the population variance square of the population standard deviation






32. A survey that includes every item or individual of the population






33. A method in which each combination of people has an equal chance of being selected- the sample is representative of the population and is independent






34. Always use a equal symbol






35. Uses numerical and or visual techniques to summarize or describe the data in a clear effective manner






36. Involves the procedures associated with the data collection process - the summarizing and interpretation of data - and the drawing of inferences or conclusions based on the analysis of the data






37. A visual exploratory data analysis technique that shows the shape of a distribution - this kind of display uses the actual values of the variable to present the shape of the distribution of data values






38. Before they are arranged or analyzed - information or observations are called________.






39. Range - standard deviation and variance.






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






41. Statistics






42. Is a sample containing similar characteristics of the population






43. A method in which you randomly choose one number from 'l' to 'k' and continue to select the kth element






44. Has the same shape and horizontal scale as a histogram - but the vertical scale is marked with relative frequencies instead of actual frequencies






45. Is the process of selecting a portion - or sample - of the entire population






46. Collection of information from the whole population






47. _______________ of a numerical variable represents the data values of the variable from the lowest to the highest value along with the number of times each data value occurs






48. Is denoted by 'n' - is the number of data values in the sample






49. The important aspects of the data are called?






50. 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.






Can you answer 50 questions in 15 minutes?



Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests