test Flashcards
The gold and blue keys on an HP 12c are ________ keys.
statisical
financial
shift
programming
shift
“In statistics, items of information used to draw conclusions about, or to describe, a population” is the definition of
datum
data
statistics
sample
data
A large sample is ______ or more.
5
10
20
30
30
“The body of principles and methods concerned with extracting useful information from numerical data” is the definition of
inferential statistics
descriptive statistics
statistics
graphical analysis
statistics
A(n) _______________ is defined as “an item of observation that can assume various values.”
variable
income stream
range
interest rate
variable
“The process of drawing conclusions about population characteristics through analysis of sample data” defines ___________ statistics.
descriptive
influential
intuitive
inferential
inferential
“The central point, or representative value, around which items cluster in a frequency distribution” is the definition of
mediancy
central tendency
mode
collinearity
central tendency
Which of the following can be used in the analysis of dispersion?
mean
median
mode
range
range
“A sample produced by an unscientific, non-random process”, for example a sample based on an appraiser’s judgment or a convenience sample is a ____________ sample.
random
stratified
nonprobability
probability
nonprobability
The deviation as shown on a chart would be measured by the difference from the observation to the mean measured by a line that runs __________to the line of the mean.
parallel
adjacent
perpendicular
at a 45 degree angle
perpendicular
“The number of values in a calculation of a statistic that are free to vary” is the definition of
average deviation
average absolute deviation
degrees of freedom
standard error
degrees of freedom
r2 measures how well the _____________ fits the _______.
regression line, cost new
regression coefficient, mean
regression line, data
dispersion, variance
regression line, data
“A numerical range around a sample mean accompanied with a statement of how confident one is that the true population mean lies within the interval” is the definition of
confidence zone
probability zone
confidence interval
coefficient of determination
confidence interval
A standard IQ test has a mean of _____ and a standard deviation of _____.
100, 1
10, 100
100, 20
100, 10
100, 1
Another name for the Student Table is the ___________ Table.
Z
T
A
X
T