STATISTICS 212 EXAM 1 TERMS WSU ACTUAL COMPLETE
EXAM|WITH ACCURATE QUESTIONS AND VERIFIED
ANSWERS|GRADED A
stratified sample Ans✓✓✓ is obtained by separating the population into
non-overlapping groups into groups called the strata than obtaining a
simple random sample from each stratum
histogram Ans✓✓✓ is constructed by drawing rectangles for each class
of data
systematic sample Ans✓✓✓ is obtained by selecting every ____
individual from the population
class midpoint Ans✓✓✓ is the sum of consecutive lower class limits
divided by two
Pareto Chart Ans✓✓✓ Vertical bar graph on which bar height reflects
frequency or impact of causes.
bar graphs Ans✓✓✓ Charts that represent information using a series of
vertical or horizontal bars
convenience sample Ans✓✓✓ a form of non-probability sample using
respondents who are convenient or readily accessible to the researcher—
for example, employees, friends, or relatives
, nonsampling error Ans✓✓✓ the result of poor sample design, sloppy
data collection, faulty measuring instruments, bias in questionnaires, and
so on.
linear correlation Ans✓✓✓ A systematic relationship between co-
variables that is defined by a straight line.
relative frequency distribution Ans✓✓✓ A tabular summary of data
showing the fraction or proportion of observations in each of several
non-overlapping categories or classes.
ordinal level of measurement Ans✓✓✓ a measurement of a variable in
which the numbers indicating a variable's values specify only the order
of the cases, permitting greater than and less than distinctions
nominal level of measurement Ans✓✓✓ characterized by data that
consist of names, labels, or categories only, and the data cannot be
arranged in an ordering scheme (such as low to high)
sampling error Ans✓✓✓ an error that occurs when a sample somehow
does not represent the target population
continuous variable Ans✓✓✓ a quantitative variable that has an infinite
number of possible values that are not countable
EXAM|WITH ACCURATE QUESTIONS AND VERIFIED
ANSWERS|GRADED A
stratified sample Ans✓✓✓ is obtained by separating the population into
non-overlapping groups into groups called the strata than obtaining a
simple random sample from each stratum
histogram Ans✓✓✓ is constructed by drawing rectangles for each class
of data
systematic sample Ans✓✓✓ is obtained by selecting every ____
individual from the population
class midpoint Ans✓✓✓ is the sum of consecutive lower class limits
divided by two
Pareto Chart Ans✓✓✓ Vertical bar graph on which bar height reflects
frequency or impact of causes.
bar graphs Ans✓✓✓ Charts that represent information using a series of
vertical or horizontal bars
convenience sample Ans✓✓✓ a form of non-probability sample using
respondents who are convenient or readily accessible to the researcher—
for example, employees, friends, or relatives
, nonsampling error Ans✓✓✓ the result of poor sample design, sloppy
data collection, faulty measuring instruments, bias in questionnaires, and
so on.
linear correlation Ans✓✓✓ A systematic relationship between co-
variables that is defined by a straight line.
relative frequency distribution Ans✓✓✓ A tabular summary of data
showing the fraction or proportion of observations in each of several
non-overlapping categories or classes.
ordinal level of measurement Ans✓✓✓ a measurement of a variable in
which the numbers indicating a variable's values specify only the order
of the cases, permitting greater than and less than distinctions
nominal level of measurement Ans✓✓✓ characterized by data that
consist of names, labels, or categories only, and the data cannot be
arranged in an ordering scheme (such as low to high)
sampling error Ans✓✓✓ an error that occurs when a sample somehow
does not represent the target population
continuous variable Ans✓✓✓ a quantitative variable that has an infinite
number of possible values that are not countable
