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, STATISTICS BEC1 STATISTICS FINAL EXAM
SOLUTIONS WGU (100% COMPLETE)
Part 1: Descriptive Statistics
Q1. Which measure of central tendency is most affected by
extreme outliers?
A. Mean ✅
B. Median
C. Mode
D. Range
Answer Key: A ✅ — The mean is sensitive to outliers; the median
is resistant.
Q2. A sample is best defined as:
A. A group of subjects selected from a population ✅
B. The entire group of interest
C. A subset of a sample
D. A parameter
Answer Key: A ✅ — A sample is a subset of a population.
Q3. Which measure of variability uses the squared deviations
from the mean?
A. Range
B. Interquartile range
C. Variance ✅
D. Mode
,
, STATISTICS BEC1 STATISTICS FINAL EXAM
SOLUTIONS WGU (100% COMPLETE)
Part 1: Descriptive Statistics
Q1. Which measure of central tendency is most affected by
extreme outliers?
A. Mean ✅
B. Median
C. Mode
D. Range
Answer Key: A ✅ — The mean is sensitive to outliers; the median
is resistant.
Q2. A sample is best defined as:
A. A group of subjects selected from a population ✅
B. The entire group of interest
C. A subset of a sample
D. A parameter
Answer Key: A ✅ — A sample is a subset of a population.
Q3. Which measure of variability uses the squared deviations
from the mean?
A. Range
B. Interquartile range
C. Variance ✅
D. Mode
