Fall 2025

Department of Mathematics

Course Title: Introduction to Statistics
Course Number: STAT 420 - Section 0101
Credit Hours: 3
Textbook: Introduction to MATHEMATICAL STATISTICS
By Hogg, McKean and Craig, 8th Edition (2018)
Course WebPage: http://www.math.umd.edu/~jjren/STAT420
Prerequisite: STAT 410 or equivalent


Test 3:
Test Statistics     Stem-Leaf Plot
 *      1 | 7
 *      2 | 6
Number of Students 13 *      3 | 09
Median 53 *      4 | 09
Mean 54.1 *      5 | 39
S.D. 24.5 *      6 | 33
Lowest Score 17 *      7 | 7
Highest Score 103 *      8 | 4
 *      9 |
 *    10 | 3

Letter Grade for Test 2
A: 82 - 100+ (2); B: 63 - 83 (3); C: 49 - 62 (3); D: 39 - 48 (2); F: 0 - 38 (3)
NOTE: The total number of students for each letter grade is given in the parenthesis.