Ef157-m1-examsolution-2014-p6 - University of Tennessee

ft/*, ft, ft, Section g:EF 157 - Fall 2013 -Exam I - Page I of7 acceleration due to gravity = 9.81 m/s2 =32.2

Name

I mile = 5280

I yard = 3

I in= 2.54 cm

l) (15 pts) Allfwe (5) of the EF 157 2?ls (Michelle, Sarah, Kaitlyn, Adam, and Amanda) were debating

how much exercise Dr. Pionke gets in a typical lecture as he paces back-and-forth during class. They

each secretly wrote down their estimate of the distance paced and handed their results to Dr. Parsons at

the end of lecture. Dr. Parsons took the results to his office to calculate the resultant statisticsbut

unfortunately he dropped two (2) of the pieces of paper. The three (3) remaining results were 43 yards,

215 feet" and 47 m (the TAs forgot to decide on a consistent set of units). Using the three (3) rcmoinlng

nuntbers, calculatc the mean, standail deviation and coeffrcient olvariolian for the all of EF 157

TAs' estimates of the distance Dr. Pionke paces during a typical lecture. Reoofi vour answerc in feet.

z sr

NpTn YO,U"MUSLSEoW ALL WORK,To.GET rU, LL CREpTT rOR Trrrs PROBLEM.

(#.r\ N = qJ y,.n.rs

aq = I

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XZ

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=

J,ts- A

,t7 r/('u#)(#r,)I/

t/ztd) /

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/s'r, /?9 '{'

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x: sx;n

7, -nr n fl') fc* =

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ls J

.4 a

x ................
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