Quant Test 1
Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
, Different methods of developing useful information from large data bases are dealt with under -
Answer: data mining
arithmetic operations provide meaningful results for variables that - Answer: are quantitative
the measurement scale suitable for quantitative data is - Answer: either interval or ratio scale
data - Answer: are the raw material of statistics
cateogrical data - Answer: may be either numeric or nonnumeric
statistical studies in which researchers control variables of interest are - Answer: experimental studies
a frequency distribution is a tabular summary of data showing the - Answer: number of items in several
classes
the relative frequency of a class is computed by - Answer: dividing the frequency of the class by the
sample size
the most common graphical presentation of quantitative data is a - Answer: histogram
a histogram is - Answer: a graphical presentation or relative frequency distribution
which of the following graphical methods shows the relationship between two variables - Answer: cross
tabulation
the measure of location which is most likely to be influenced by extreme values in the data set is the -
Answer: mean
the mean of the sample - Answer: can assume any value between the highest and the lowest value in
the sample
Questions and
Complete Solutions
Graded A+
Denning [Date] [Course title]
, Different methods of developing useful information from large data bases are dealt with under -
Answer: data mining
arithmetic operations provide meaningful results for variables that - Answer: are quantitative
the measurement scale suitable for quantitative data is - Answer: either interval or ratio scale
data - Answer: are the raw material of statistics
cateogrical data - Answer: may be either numeric or nonnumeric
statistical studies in which researchers control variables of interest are - Answer: experimental studies
a frequency distribution is a tabular summary of data showing the - Answer: number of items in several
classes
the relative frequency of a class is computed by - Answer: dividing the frequency of the class by the
sample size
the most common graphical presentation of quantitative data is a - Answer: histogram
a histogram is - Answer: a graphical presentation or relative frequency distribution
which of the following graphical methods shows the relationship between two variables - Answer: cross
tabulation
the measure of location which is most likely to be influenced by extreme values in the data set is the -
Answer: mean
the mean of the sample - Answer: can assume any value between the highest and the lowest value in
the sample
