MATH 120 INTRODUCTION TO STATISTICS LIME SPRING WEEK 8 FINAL EXAM UPDATED REVIEW PAPER 2026 QUESTIONS AND CORRECT ANSWERS GRADED A+

MATH 120 INTRODUCTION TO STATISTICS
LIME SPRING WEEK 8 FINAL EXAM
UPDATED REVIEW PAPER 2026
QUESTIONS AND CORRECT ANSWERS
GRADED A+

⩥ Nonrandom sampling error. Answer: Result of using a sample method
that is not random, such as using a convenience sample or a voluntary
response sample.


⩥ Characteristics of Data (CVDOT). Answer: 1. Center
2. Variation
3. Distribution
4. Outliers
5. Time


⩥ Center. Answer: A representative value that indicates where the
middle of the data set is located.


⩥ Variation. Answer: A measure of the amount that the data values vary.

, ⩥ Distribution. Answer: The nature or shape of the spread of the data
over the range of values.
Example: Bell-shaped


⩥ Outliers. Answer: Sample values that lie very far away from the vast
majority of the other sample values.


⩥ Time. Answer: Any change in the characteristics of the data overtime.


⩥ Frequency distribution. Answer: AKA frequency table
Shows how data are partitioned among several categories (or classes) by
listing the categories along with the number (frequency) of data values
in each of them.


⩥ Lower class limits. Answer: The smallest numbers that can belong the
the different classes.


⩥ Upper class limits. Answer: The largest numbers that can belong the
the different classes.


⩥ Class boundaries. Answer: The numbers used to separate the classes,
but without the gaps created by class limits.


⩥ Class midpoints. Answer: The values in the middle of the classes.