M~TERM RE~r~EW #2
DUE ~UESDAY JANUARY 17th
Unit 2: Word Problems Study Guide
You must show all work. Set up each problem with let statements, drawin~ pictures, on
charts dependin~ on the problem
1. Mi
We know that 13% of the population is left handed. A 200 seat auditorium has been built with 15
lefty seats that have been built in desk on the left rather than the right arm of the chair. In a class
1) Undercoverage: some groups in the population are left out of the sample
selection process
2) Nonresponse: individual chosen for a sample wont cooperate or cant be
contacted
3) Bias: a study is bias
1) Fourprincipalsofexperimentaldesign:
a. Control:wemustcontrolsourcesofvariationotherthanthefactorswearetesting
b. Randomization:allowsustoequalizetheeffectsofunknownoruncontrollablesourcesof
variati
1. The 2-proportion z-interval
You simply do:
q
p$ q
p$
( 1 2 ) z * ( 1 1 + 2 2 )
pp
n1
n2
When do I use this?
When I am given more than one percent.
Note* The assumptions and conditions are the same
Experimental units: who you run the experiment on
Response variable: running times (for above example)
4 principles in more depth:
o Randomized: must randomly assign treatment
o Replication: have to
The first thing you need to know, is that there are two types of data you can be given:
Percents
and
Averages
Note: Anything written on this sheet in pink pertains to percents, and anything on this
sh
1. The 1-proportion z-test
When do I use it?
When I am given one percent and asked if I think the true percent is actually
greater than, less than, or simply not that percent.
The assumptions and cond
Unit 2: Word Problems Study Guide
You must show all work. Set up each problem with let statements, drawinq~pictures, or
charts dependinq on the problem
1. Mike has four less than two times the number
2013 Final Exarrrlieview Racket: Name
This packet is broken up into 5 parts. K
Part 1: Systems of Equations and Inequalities W
Solve systems ofequations using the graphing, substitution, and eliminati
Mid-Term Review Unit 1
Place These numbers in order from Ieasf rggrearesr
J25 2.232323...
1. Which number'(s) from above are irrarional? 2. Which numbers are imegers?
(3) @713)
3. Simplify The
Midterm Review: Pre-Calc topics
~)
Use your forr~ula sheet to answer each question beldw. You may workin groups.
1. Determine the measure of the angles sketehed below
74
2. Convert degrees/radians
a.
ENTERMEDIATE ALGEBRA
MIDTERM EXAM REVIEW PART III
ChapTer 2
A. RepresenT RelaTions and FuncTions (2.1)
E. Find Slope and RaTe of Change (2.2)
C. Graph EquaTions of Lines (2.
MidTerm Review ParT 2
UniTs 2 and 3: Word Problems, InequaliTies and AbsoluTe Value
PercenT Problems
1. Mary spends $135 To purchase a new jackeT. She pays 7.5% sales Tax on The I
purchase. Find The f
Midferm ReView: Special Righ} Triangles and Pythagorean Theorem n ~
V Use special righ: Triagles To solve for x and y
1)x: 33 y: 2)x: Y:-0l
Use Pythagorean Thm. To find The measure of
Simulations
Simulation is a way to estimate probabilities when we are either unable to
determine probabilities analytically or do not have the time, resources, or
money to estimate probability by obse