In __ we select elements because they are easy to sample. correct answers convenience sampling
__ sampling is where we know the chance that each element will be included in the sample, which allows us to statistical inferences about the sample population correct answers probability
Which of t...
BUAL 2600 Final Exam || with Complete Solutions.
In __ we select elements because they are easy to sample. correct answers convenience sampling
__ sampling is where we know the chance that each element will be included in the sample,
which allows us to statistical inferences about the sample population correct answers probability
Which of the following is a type of question used in survey research? correct answers open
ended, dichotomous, and multiple choice are all correct
A ___ is a list of all units in a population correct answers frame
Which of the following is a quantitative variable? correct answers mileage of a car
____ is the science of using a sample to make generalizations about the important aspects of a
population. correct answers statistical inference
College entrance exam scores, such as SAT scores, are an example of an ___ variable correct
answers interval
Examining all population measurements is called a_____________. correct answers census
A ___ is the subset of the units in a population correct answers sample
A ___ variable takes on values that are numbers on the real number line correct answers
quantitative
A set of all elements we wish to study is called a correct answers population
If we collect data on the number of wins the Dallas Cowboys earned each of the past 10 years,
we have ____ data correct answers time series
Which of the following divides quantitative measurements into classes and graphs the frequency,
relative frequency, or percentage frequency for each class? correct answers histogram
____ and ____ are used to describe qualitative (categorical) date correct answers bar charts, pie
charts
If there are 130 values in a data set, how many classes should be created for a frequency
histogram? correct answers 8
the number of measurements falling within a class interval is called the correct answers
frequency
A relative frequency histogram having a longer tail to the right than to the left is said to be
correct answers skewed to the right
, The proportion of measurements in a class is called the __ of that class correct answers relative
frequency
The following is a partial relative frequency distribution of grades in an introductory statistics
course.
Grade Relative Frequency
A 0.22
B?
C 0.18
D 0.17
E 0.06 correct answers 0.37
All of the following are measures of central tendency except the correct answers range
Which percentile describes the first quartile, Q1? correct answers 25th
If the mean, median, and mode for a given population are all equal and the relative frequency
curve has matching tails to the right and left, then we would describe the shape of the distribution
of the population as correct answers symmetrical
A measurement located outside the upper limits of a box-and-whiskers display is ___________.
correct answers an outlier
Another name for the 50th percentile is the correct answers median
A ___ shows the relationship between two variables. correct answers scatter plot
The measurement in a sample or a population that occurs most frequently is the ___ correct
answers mode
Which of the following is a measure of the strength of the linear relationship between x and y
that is dependent on the units in which x and y are measured? correct answers ?
In a statistics class, the following 10 scores were randomly selected : 74, 73, 77, 77, 71, 68, 65,
77 67, 66. correct answers 71.5
If the median of a data set is 760, the upper quartile is 950, and the lower quartile is 650, what is
the interquartile range? correct answers 300
Which of the following is not a graphical tool for descriptive analytics(dashboards)? correct
answers raw data
A __ is a graphical presentation of the current status and historical trends of a business's key
performance indicators. correct answers dashboard
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