MATH 214 Study Guide - Midterm Guide: Standard Deviation, Normal Distribution, Zip Code

• School: University of Maryland
• Department: Mathematics
• Course: MATH 214
• Professor: All

Document Summary

Instructions: this exam consists of seven questions, found on the front and back of this page. Answer each question on the indicated answer sheet. Calculators are allowed, but you must show work for full credit. Answer questions 1-3 on answer sheet 1: identify the type and level of measurement of each variable underlined below. [4 pt ea] the first tycoon is put into action: every third-grade student in a state public school takes a fitness test which includes a timed 100-yard run. Suppose the times (in seconds) of all the students approximate a normal distribution with mean 14. 8 sec and standard deviation 2. 1 sec. tenth of a percent. ) [5 pt] the nearest tenth of a second. ) 1: describe the shape of this distribution. Answer questions 4-5 on answer sheet 2: consider the following list of numbers: 16 17 21 26: explain in a few sentences how to quickly calculate the mean of this list, without adding the numbers together.