MSIS 3223 Exam 1 Questions and Answers (Graded A)MSIS 3223 Exam 1 Questions and Answers (Graded A)MSIS 3223 Exam 1 Questions and Answers (Graded A)
Covariance - ANSWER-a measure of linear association between two variables, X and Y
Correlation - ANSWER-measure of the linear relationship between ...
MSIS 3223 Exam 1 Questions and
Answers (Graded A)
• Appendix A1 and Chapter 1, 2, 3, 4 (100 points)
• 50 Multiple Choice Questions worth 2 points each
• Appendix A1 - 6 MC Questions
• Chapter 1- 10 MC Questions
• Chapter 2 - 3 MC Questions
• Chapter 3 - 8 MC Questions
• Chapter 4- 23 MC Questions
, Covariance - ANSWER-a measure of linear association between two variables, X and Y
Correlation - ANSWER-measure of the linear relationship between two variables, X and
Y, which does not depend on the units of measurement. is measured by the coefficient.
For two variables a __________ correlation coefficient indicates a linear relationship
exists for which one variable increases as the other also increases. - ANSWER-positive
Kurtosis - ANSWER-refers to the peakedness or flatness of a histogram
The coefficient of skewness - ANSWER-measures the degree of asymmetry of
observations around the mean
Skewness - ANSWER-describes the lack of symmetry data
Coeffecient of Variation - ANSWER-provides a relative measure of the dispersion in
data relative to the mean and is defined as CV=Standard Deviation/Mean.
The coefficient of variation provides a relative measure of risk to return. The smaller the
coefficient of variation, the ___________ the relative risk is for the return provided. -
ANSWER-smaller
The reciprocal of the coefficient of variation, called _______________, is often used
because it is easier to interpret. - ANSWER-return to risk
Frequency Distribution - ANSWER-• table that shows the number of observations in
each of several non-overlapping groups. A graphical depiction of this in the form of a
column chart is called a histogram.
Relative Frequency - ANSWER-Frequencies may be expressed as a fraction, or
proportion of the total
Ratio Data - ANSWER-continuous and have a natural zero point. Most business and
economic data, such as dollars and time, fall into this category.
Interval Data - ANSWER-have constant differences between observations and have
arbitrary zero points. allow meaningful comparison of ranges, averages and other
statistics?
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