SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
DSST Intro To Statistics
Start Test
Study First
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. _______________ are numerical values that can assume only a limited number of values
Systematic sampling
Distribution
Stem-and-Leaf display
Discrete Data
2. Sample mean
Ordinal
x
Skewed Distribution
H1
3. Is a number that describes a characteristic of a population
Continuous Data
Graph
Parameter
Statistic
4. To calculate the percentile take the number of values less than x - divide by total number of values and times by 100.
Simple random sample
Median
Population Size
Percentile
5. Probability of event A
Simple random sample
Sample
Representative Sample
P(A)
6. Variable where the value is a number that results from a measurement process - also called numerical data
The effect of extreme values on the measures of center
Median
Population
Numerical Variable
7. The important aspects of the data are called?
Population
Characteristic of a distribution
Distribution
Census
8. The variable value can be represented as isolated points on a number line
The 2 measures of relative standing
Discrete numerical data
Representative Sample
S x
9. Always use a equal symbol
Center of Distribution
Population Size
What symbol must always be found in H0
Sampling
10. Members of the population select themselves by volunteering
Self-selected sample
Variable
Statistic (note there is no 's' at the end)
Population
11. Uses numerical and or visual techniques to summarize or describe the data in a clear effective manner
Descriptive Statistics
Representative Sample
s
Simple Random Sample
12. Is denoted by 'n' - is the number of data values in the sample
p
Self-selected sample
Sample Size
Population
13. Collection of information from the whole population
Census
The 2 measures of relative standing
Numerical measurement describing some characteristic of a sample.
s2
14. 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
Frequency histogram
Symmetric Distribution
Statistics
Representative Sample
15. Is denoted by 'N' - is the number of data values in the population
Population
Statistic (note there is no 's' at the end)
Population Size
Alpha (a)
16. 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.
Pictograph
p
Parameter
17. A method of experimentation in which you can control as many variables as possible in order to isolate the effects of a response variable
Population Size
Characteristic of a distribution
Designed experiment
What symbol must always be found in H0
18. Null hypothesis
H0
Dependent events
Convenience sampling
19. When the distribution of the data values greater than the center of the display - and the data values less than the center of the display are mirror images of each other
Symmetric Distribution
Parameter
Graph
Census
20. A survey that includes every item or individual of the population
Range
Census
Discrete numerical data
p
21. Type of bar graph that shows frequency distributions
Frequency histogram
Census
Sample Variance
range
22. Is the entire collection of all individuals or objects of interest
Disjoint event
Population
Simple Random Sample
Interval
23. A method of data collection in which the objects of study are observed in their natural settings and the variables are recorded
Observational study
Raw Data
Population
H1
24. 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
Skewed Distribution
Outliers
Alpha (a)
Statistics
25. Create a sample by using data from population members that are readily available
The effect of extreme values on the measures of center
Sample
Statistic
Convenience sampling
26. 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
Sample
Statistic
Simple random sample
Population
27. Lowercase sigma; population standard deviaition
s2
Sampling
s
28. _______________ are numerical measurements that can assume any value between two numbers
Symmetric Distribution
Self-selected sample
s2
Continuous Data
29. 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
Stem-and-Leaf display
Interval
Inferential Statistics
Distribution
30. Before they are arranged or analyzed - information or observations are called________.
Center of Distribution
Discrete numerical data
Disjoint event
Raw Data
31. 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
Range
Dependent events
Self-selected sample
Skewed Distribution
32. Is the process of selecting a portion - or sample - of the entire population
Continuous Data
Census
Population
Sampling
33. Is a collection of several data pertaining to one or more variables
Sample
Frequency histogram
Data Set
Outlier
34. The pattern of variation of data. The distribution may be described as symmetrical - positively skewed - or negatively skewed
Distribution
Statistic
Statistic (note there is no 's' at the end)
Systematic sampling
35. Range - standard deviation and variance.
Descriptive Statistics
Simple random sample
Convenience sampling
The 3 measures of variation
36. Population is organized into groups (i.e - neighborhoods/departments) - and sampling unit is selected by a simple random sample
Cluster sampling
Designed experiment
Dependent events
Data Set
37. Type of information - usually a property of characteristic of a person or thing that is measured or observed
Range
Statistic (note there is no 's' at the end)
Statistics
Variable
38. Is a number that describes a characteristic of a sample
Warning
: Invalid argument supplied for foreach() in
/var/www/html/basicversity.com/show_quiz.php
on line
183
39. An efficient method of graphing information using actual amounts: clusters - gaps - outliers are clearly identified.
Parameter
Dot plots
Stem and leaf plots
Disjoint event
40. (largest data value) - (smallest data value)
range
Pictograph
Stem-and-Leaf display
Ratio
41. _______________ 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
Graph
What symbol must always be found in H0
Nominal
Distribution
42. Represents categories - and is nonnumerical in nature
Population
Categorical Variable
Population
Parameter
43. Level of measurement- Is like the ordinal level - with the additional property that we can determine meaningful amounts of differences between data. However - there is no inherent (natural) zero starting point (where none of the quantity is present).
Relative frequency histogram
Inferential Statistics
Simple Random Sample
Interval
44. Standard scores and percentile
Census
The 2 measures of relative standing
n
Population
45. Population size
Discrete numerical data
Representative Sample
Distribution
N
46. A collection of individuals about which we want to draw conclusions
Survey
The 3 measures of variation
Designed experiment
Population
47. Test use normalcdf(ZTS -999)
range
Sample
p value right tail
What symbol must always be found in H0
48. Is a sample containing similar characteristics of the population
Parameter
Disjoint event
Representative Sample
Self-selected sample
49. Mean - mode - median and midrange.
The 4 measures of center
Frequency
S
Survey
50. Using graphs and numerical summaries to describe variables in a data set and their relationship
Exploratory data analysis
p value left tail
S x
Observational study