Exam 3 Review Sheet
Section 11.4 & 11.5
Solving Equations in Quadratic Form Using Substitution:
An equation that is quadratic in form is an equation that can be expressed as a quadratic
equation au2 + bu + c = 0 after performing a substitution. Solve the
Midterm #1 Review Sheet
General Info:
Covers chapters 2 through 4, (omit section 4-7).
There will be less than 20 questions on the midterm.
You have 2 attempts to take the midterm and 3 hrs per attempt to complete it.
I will record the higher score be
Orientation to Register into MyStatLab
Instructor email: jkimm@sdccd.edu
Text Book Options:
You have two options for the textbook:
1 Buy the textbook (hard copy) from San Diego City College bookstore with the
MyStatLab access code shrink-wrapped with the
Pearson's MyLab & Mastering
Student Registration Instructions
To register for Math 119 - Spring 16 - CRN 57352 - Prof. Kimm:
1. Go to www.pearsonmylabandmastering.com.
2. Under Register, select Student.
3. Confirm you have the information needed, then sel
Rank
Movie Title
1 Marvel's The Avengers
2 The Dark Knight Rises
3 The Hunger Games
6 The Twilight Saga: Breaking Dawn Part 2
4 Skyfall
5 The Hobbit: An Unexpected Journey
11 Dr. Seuss' The Lorax
8 Brave
7 The Amazing Spider-Man
10 Madagascar 3: Europe's
Density Lab:
We are going to be measuring the density of at least 3 cubes of various materials and comparing
our results with known values.
The density of an object,
, is defined as its mass (M) per unit volume (V). If the mass in an
object is distribute
Theoretical Computer Science Cheat Sheet
Deniticms Series
ill E positive 0,710 such that
0 g g cg(n) Vn 2 no.
iff E positive 0,710 such that
f0») 2 09(71): 0 W 2 no.
i f0») = 0(g(n)) and
f0») = 9-(9 71))-
f(n) = 0(g(n)) i Hmmo f(n)/g(n) = 0
STATISTICS
Standardizing Standard Deviations: Z-Scores
The heights of individuals within a certain population are normally distributed. That is, we find that most
peoples' heights are clustered around an average height and the farther a particular height
STATISTICS: TRADITIONAL HYPOTHESIS TESTING WHEN n>30
The effectiveness of a SAT preparation course was studied for a random sample of 75 subjects
who had taken the SAT twice; first without preparation and then again after taking the course.
The two sets o
t - Table For means, use when is NOT known (s is given)
(See Choosing z or t flowchart, below right, for details).
Also used for other applications.
Student's T-distribution (Probability Density Function)
Degrees
Confidence
of
Intervals
Freedom One Tail,
Part III of a three-part series
I-FCP, II-Permutations, III-Combinations
Part III: Combinations
COUNTING METHOD #3. COMBINATIONS
(Use only when neither order nor repetition are implied/required.)
Introduction
n!
(n things taken r at a time)
r! (n-r)!
n =
Part II of a three-part series
I-FCP, II-Permutations, III-Combinations
Part II: Permutations
COUNTING METHOD#2. PERMUTATIONS
(Use when order is implied or stated and repetition is not.)
Introduction
The permutations method of counting is a
specfic case t
Part I of a three-part series:
I-FCP, II-Permutations, III-Combinations
Part I: The FCP
How to Order, How to Repeat
Problems involving counting usually deal with ways of selecting objects, numbers, or
persons. Sometimes these selections involve a need to
Practice Final Exam
STA 2023
Name _
Section_
1. Identify the type of sampling used in each case.
(Random, Systematic, Stratified, Cluster, or Convenience)
a.
A pollster selects drivers who are having their cars
repaired at a local Sears auto store.
a._
b.
Practice Test #4
STA 2023
Name _
Section_
1. We want to estimate the mean energy consumption level for a home in one region. We want to
be 90% confident that our sample mean is within 25 kwh of the true population mean, and past
data strongly suggest that
Practice Test #3
STA 2023
Name _
Section _
1. A question on a proficiency test is multiple choice with four possible answers, one of which is
correct. Assuming that all responses are random guesses, find the probability that among 12
test subjects, exactl
Practice Final Exam
STA 2023
Name _
Section_
1. Identify the type of sampling used in each case.
(Random, Systematic, Stratified, Cluster, or Convenience)
a. A pollster selects drivers who are having their cars
repaired at a local Sears auto store.
a.
Con
Practice Test #1
STA 2023
Name _
Section _
1. Which of the following variables are quantitative and which are qualitative? Classify the
quantitative variables as discrete or continuous.
(a) The temperature of the water
_
(b) The tally marks on a frequency
Practice Test #2
STA 2023
Name _
Section _
1.
Nine Poker chips (4 red chips, 3 blue chips and 2 green chips) are placed in a hat and are
then randomly selected from the hat. Find the following Probabilities:
a) If a single chip is drawn from the hat, what
Practice Test #4
STA 2023
Name _
Section _
1. We want to estimate the mean energy consumption level for a home in one region. We want to
be 90% confident that our sample mean is within 25 kwh of the true population mean, and past
data strongly suggest tha
Practice Test #2
STA 2023
Name _
Section _
1.
Nine Poker chips (4 red chips, 3 blue chips and 2 green chips) are placed in a hat and are
then randomly selected from the hat. Find the following Probabilities:
a) If a single chip is drawn from the hat, what
Practice Test #3
STA 2023
Name _
Section _
1. A question on a proficiency test is multiple choice with four possible answers, one of which is
correct. Assuming that all responses are random guesses, find the probability that among 12
test subjects, exactl
SPECIAL PROBABILITIES
The Problem: The probability that a husband and a wife will be alive in ten years from now are 0.7 and
0.6, respectively. (Assume that the events are independent)
1. Find the probability that exactly one will be alive in ten years.
2
Practice Test #1
STA 2023
Name _
Section _
1. Which of the following variables are quantitative and which are qualitative? Classify the
quantitative variables as discrete or continuous.
(a) The temperature of the water
Quantitative - Contineous
(b) The ta
SIGN TEST
Start
Assign positive and negative signs
to the data and discard any zeros.
Let n be equal to the total number of signs .
Let x equal the number of the
least frequent signs.
Find the critical value from
Table A-7. (See Back)
Critical Values of t
Pseudo-Test 2 Key, MATH 1442, Spring 2007, Dr. Sterba-Boatwright
0.015
0.000
y
0.030
Instructions: do all problems. Unless I say otherwise, you should always show your work, even
if your calculator has a magic button that lets you do 7 steps at once.
1. 1
Pseudo-Test 2, MATH 1442, Spring 2007, Dr. Sterba-Boatwright
Rules for REAL TEST: one 8 1 11 sheet of notes, both sides OK, anything you want on it OK, you
2
dont have to turn it in; calculator; Ill give you z-tables and t-tables to work from.
Differences
Math 119, Section 000
Take Home QUIZ 9
Instructions: Due April 18, 2006. Turn in your (neat and legible) answers on separate paper with your name at the top. You are allowed to work
together, but must turn in your own work. YOU CANNOT COPY someone
elses w
MATH 119 - STATISTICS: CALCULATOR TIPS
Different calculators work differently. Feel free to ask me about yours.
You need to show work, but you can use calculators to check your results.
ENTERING DATA
TI-30X IIS
Press STAT (2nd-DATA).
The underline cursor