Test your basic knowledge |

AP Statistics Vocab

Subjects : statistics, ap
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. A list of individuals from whom the sample is drawn






2. The lower of this is the value with a quarter of the data below it; the upper of this has a quarter of the data above it






3. The number of individuals in a sample






4. The tendency of many human subjects (often 20% or more of experiment subjects) to show a response even when administered a placebo






5. The difference between the first and third quartiles






6. Useful family of models for unimodal - symmetric distributions






7. Design Randomization occurring within blocks






8. Consists of the individuals who are conveniently available






9. Found by summing all the data values and dividing by the count






10. Consists of the minimum and maximum - the quartiles Q1 and Q3 - and the median






11. Shows quantitative data values in a way that sketches the distribution of the data






12. Done to eliminate units; values can be compared and combined even if the original variables had different units and magnitudes






13. A study based on data in which no manipulation of factors has been employed






14. When an observed difference is too large for us to believe that is is likely to have occurred naturally






15. Doing this is equivalent to changing its units






16. Value calculated from data to summarize aspects of the data






17. When both those who could influence and evaluate the results are blinded






18. The linear equation y-hat = b0 + b1x that satisfies the least squares criterion






19. Distributions with two modes






20. When averages are taken across different groups - they can appear to contradict the overall averages

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


21. Any systematic failure of a sampling method to represent its population; common errors are voluntary response - undercoverage - nonresponse ____ - and response ____






22. Variables are said to be this if the conditional distribution of one variable is the same for each category of the other






23. The sequence of several components representing events that we are pretending will take place






24. These are hard to generate - but several websites offer an unlimited supply of equally likely random values






25. In a retrospective or prospective study Subjects who are similar in ways not under study may be ____ and then compared with each other on the variables of interest






26. Summarized with the standard deviation - interquartile range - and range






27. A numerical summary of how tightly the values are clustered around the 'center'






28. Bias introduced to a sample when individuals can choose on their own whether to participate in the sample






29. An individual result of a component of a simulation






30. Summarized with the mean or the median






31. The ith ___ is the number that falls above i% of the data






32. Values of this record the results of each trial with respect to what we were interested in






33. Shows how a 'whole' divides into categories by showing a wedge of a circle whose area corresponds to the proportion in each category






34. Any attempt to force a sample to resemble specified attributes of the population






35. Tells how many standard deviations a value is from the mean; have a mean of zero and a standard deviation of one






36. To describe this aspect of a distribution - look for single vs. multiple modes - and symmetry vs. skewness






37. Lists the categories in a categorical variable and gives the count or percentage of observations for each category






38. Value found by subtracting the mean and dividing by the standard deviation






39. To be valid - an experiment must assign experimental units to treatment groups at random






40. Gives the possible values of the variable and the frequency or relative frequency of each value






41. Displays counts and - sometimes - percentages of individuals falling into named categories on two or more variables; categorizes the individuals on all variables at once - to reveal possible patterns in one variable that may be contingent on the cate






42. A variable that names categories (whether with words or numerals)






43. Ideally tells who was measured - what was measured - how the data were collected - where the data were collected - and when and why the study was performed






44. The most basic situation in a simulation in which something happens at random






45. This criterion specifies the unique line that minimizes the variance of the residuals or - equivalently - the sum of the squared residuals






46. When doing this - consider their shape - center - and spread






47. An individual about whom or which we have data






48. The difference between the lowest and highest values in a data set






49. An observational study in which subjects are followed to observe future outcomes






50. A sample drawn by selecting individuals systematically from a sampling frame