TEST 3 REVIEW
Give the symbol that represents the portion of the line named and draw a figure showing just the portion
Based on the figure, specify the given set in a simpler way.
Some Practice for Test 5
9. Solve log
(1/16) = -4 Hint: First CHANGE TO EXPONENTIAL FORM
10. Evaluate: log 1/3 9 = -2
11. Solve log 64 x = 1/3
12. Solve the exponential equation 9 x +1 = 27 -x
13. Solve the exponential equation, 3x = 5 x+1
Chapter 7.2 Lecture Handout
1. The Pew Research Center conducted a poll of 1501 randomly selected adults in the
United States and found that 1050 of them believed in global warming.
a. Find the sample proportion.
b. Find the best point estimate of
STAT2023 MW 11 AM
Classwork (Ch. 5)
Use the information presented to answer questions 1-3.
American Televisions. The random variable x represents the number of televisions in a
household in the U.S. (based on data from Franklin N. Magid Asso
STAT2023 MW 11 AM
Classwork (Ch. 4)
Use an experiment with a regular foam cup to answer the questions. (Relative Frequency
Approximation of Probability)
a. What is the sample space?
b. Flip the foam cup 10 times. Find the probability th
STAT2023 MW 11 AM
Classwork (Ch. 2)
Directions: Use the data in Table 2 -1 to answer the following questions. Show your work.
Consider the pulse rate measurements of a random sample of females, with the results listed in
the table below.
1) What does that mean Factoring Polynomials?
Different ways to Factoring Polynomials
2) Type1: a) Factoring Polynomials using GCF
b) Factoring Polynomials using Grouping and GCF
Vocabulary: Prime polynomials?
Factoring Trinomials on the form
In general parlance, the term probability is used as a measure of a persons belief in the
occurrence of an event. This is the subjective notion of probability. Take a sentence such as,
There is a 60% probability of rain tomorrow.
Discrete Random Variables
A random variable is a real-valued function on a sample space1 . A random variable generally
is a quantity we wish to measure; the output of the random variable depends on which
element of the sample space
.-'-."hat you need to re .
Please review each of the following questions at least once. To return to the learning mode, click on "MvPie"
Real Numbers and Mgebmic Expressions
Whole N umbers
Greatest common factor of 2 numbers
MAT 0028 Worksheet #12
MUST SHOW ALL WORK/ALL STEPS TO RECEIVE CREDIT
1) Show all work on how to simplify the following:
76 x 8
73 x 2 x 4
For numbers 2-5, simplify. Show all work
5p3 4 p
a 7 b9 c 4
Ref #527161 Mat 0028 Fall 2015 Term 2 Calendar
Building 1008 Room 118 Time: 5:00-7:50 PM TUES & THURS
Day 1 & 2
Day 3 & 4
Objective 1 Closes in ALEKS
Last Day for 100% Refund
Day 5 & 6
Day 7 & 8
Day 9 Test 1 (Objectives 1
The National Assessment of Educational Progress (NAEP) includes a mathematics test for high
school seniors.2 Scores on the test range from 0 to 300. Demonstrating the ability to use the
Pythagorean theorem to determine the length of a hypotenuse is an exa
The Millennial generation (so called because they were born after 1980 and began to come of age
around the year 2000) are less religiously active than older Americans. One of the questions in
the General Social Survey in 2008 was How often does the respon
1. Does X have a binomial distribution?
A. No, the calls are not independent.
B. No, the calls are independent, but each one has more than two possibilities.
C. Yes, the calls are independent, each one has two possibilities, and the probability of
1. Heres a new idea for treating advanced melanoma, the most serious kind of skin cancer.
Genetically engineer white blood cells to better recognize and destroy cancer cells, then infuse
these cells into patients. The subjects
in a small initial study of
1. What is the slope of the regression line?
The slope is the coefficient before the x variable (D in this case). Thus the answer is 0.0138.
Points Earned: 1/1
Correct Answer: 0.0138
Your Response: 0.0138
2. Explain in specic language what this slo
1. In 2008, respondents to the General Social Survey were asked: There are always some people
whose ideas are considered bad or dangerous by other people. For instance, somebody who is
against churches and religion. If such a person wanted to make a speec
It appears that people who are mildly obese are less active than leaner people.
One study looked at the average number of minutes per day that people spend standing or walking.
Among mildly obese people, minutes of activity varied according to the N(373,
. I want to examine the relationship between gas mileage of cars and the engine size
(displacement in cubic inches). The explanatory variable is
A. engine size.
B. gas mileage.
C. either engine size or gas mileage.
Points Earned: 0/1
Students who have finished medical school are assigned to residencies in hospitals to receive
further training in a medical specialty. Here is part of a hypothetical database of students seeking
residency positions. USMLE is the students score on Step 1 o
1. A professor is interested in how the 500 students in his class will rate today's lecture. He
selects the first 20 students on his class list, reads the names at the beginning of the lecture,
and asks them to go online to the course Web site and rate th
1. Government data show that 8% of adults are full-time college students and that 30% of adults
are age 55 or older.
Nonetheless, we can't conclude that, because (0.08)(0.30) = 0.024, about 2.4% of adults are
college students 55 or older.
1. Choose 50 engaged couples who have not been previously married. Interview the man and
woman separately about how their joint finances will be handled after marriage. Compare the
views of men and women. Which data design?
B. a single s
1. I took a sample of the grade point averages for student in my class. For 25 students, the
standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the
Points Earned: 1/1
1. From March 1981 to February 1983 the number of burglaries committed each month in a
Georgia town was recorded. They are given in the chart below. Between months 12 and 13 a
law was enacted requiring citizens to own a gun. Town officials felt this law m
1. Explain carefully what this means.
A. If you play 245 games, in 2 of them you will get four of a kind.
B. If you hold a pair and you open 245 cards, you will have 2 combinations of four of a kind.
C. If you have a pair in your hand, the probability tha
1. A researcher in early education believes that kindergarten-age children are more receptive to
help from a female teacher than from a male teacher. From the list of kindergarten teachers in
the state, the researcher randomly samples four classes in whic
1. A sociologist wants to study the attitudes of American male college students toward
marriage and husband-wife relations. She gives a questionnaire to twenty-five of the men
enrolled in Sociology 101 at her college. All twenty-five complete and return t