1.
Identify each as ratio, nominal, ordinal or interval.
_
_
2.
3.
the median home prices in 3 Bay Area counties:
$722,500, $632,500, $567,500
age grouping:
young, middle age, senior
_
declared major:
liberal studies, physics, psychology, biology
_
temper
MATH 242 FINAL PROJECT
t= years after retirement
y=the amount of saving( after)
x=the amount of saving(before )
S=the amount of each year s saving(before)
PART ONE
1. How much should I save?
2. The interest rate is 5%.
3. Need to spend 80,000/year.
4. At
1.3
Distributions and their pictures
The Important Idea of a Distribution
In the first section we looked at the basic goal of statistics, namely, to ask and answer questions
about collections of data. To answer questions, we need some terminology, so we a
1.5
Numerical Summaries of Center/Location
The Idea of Center or Location: Where Is the Distribution?
We have already seen that the idea of the center of a distribution refers to its location on the scale
of possible values. Suppose you were asked: Compar
1.1
Starting Out
First Steps
Statistics is for asking and answering questions about collections. More specifically, statistics asks
and answers questions about collections of data. There can be collections of people, collections of
places, such as towns o
2.1
Comparisons, Relationships, and Interpretation
Review Example: Using the tools to calculate and interpret
This section begins by reviewing what we have done in the previous sections. The first examples
are similar to the exercises for this section. At
1.6
Variation: Measurement and Interpretation
Variability (or Spread) and its challenges
Look again at the distributions of tuition fees for the three types of colleges and universities. It is
clear that on average the tuition fees at the private colleges
Preface: Some Questions about the Course in Statistics
Why is there a sea star on the cover?
Well, its a nice picture. But it is also because statistics is about everything sea stars, muscles and
anemones included, which is probably why your university sy
Yen-Ming Hou
#4
Australian Students Handedness and Reaction Times
People usually use their dominant hand to complete daily tasks. But have you
ever tried using your non-dominant hand to complete these tasks, like holding a fork
or brushing your teeth? Doe
Review 1
Math 268
Make sure to read the textbook, know how to do all quiz and homework problems, and understand the
examples in class.
1. Negate: 2 < 1
2. Construct a truth table for (p q) r) p
3. Is ~()() a contradiction or tautology?
4. Verify () ()
5.
Question 6
Points: 10 out of 10
Automobile fuel efficiency is often measured in miles that the car
can be driven per gallon of fuel (mpg). Heavier cars tend to have
lower fuel efficiencies (lower mpg ratings). Which variable (weight
or fuel efficiency) is
Question 1
Points: 10 out of 10
Final and course grade: We recorded the final exam (in percent)
and course grade (in percent) for 75 statistics students. Which of
the following scatterplots shows that students with higher final
exam scores tend to have hi
A local Honda dealership collects data on customers. Here is data
from 311 customers who purchased a Honda Civic.
Hybrid Honda Civic
Standard-engine Honda
Civic
Row totals
Male
77
117
194
Female
34
83
117
Column
totals
111
200
311
Which of the following p
In 1912, the RMS Titanic, a British passenger ship, sank in the
North Atlantic Ocean after colliding with an iceberg. Historians do
not know the exact passenger list, so the death toll is estimated.
Here is data from the 2201 passengers on board, by cabin
Question 5
Points: 10 out of 10
In 1912, the RMS Titanic, a British passenger ship, sank in the
North Atlantic Ocean after colliding with an iceberg. Historians do
not know the exact passenger list, so the death toll is estimated.
Here is data from the 22
Question 1
Points: 10 out of 10
In 1912, the RMS Titanic, a British passenger ship, sank in the
North Atlantic Ocean after colliding with an iceberg. Historians do
not know the exact passenger list, so the death toll is estimated.
Here is data from the 22
Question 1
Points: 10 out of 10
Which of the following is a discrete random variable?
Gender of a Holland Lop rabbit.
Number of baby bunnies in a Holland Lop does nest.
Weight of a Holland Lop baby bunny.
Feedback
Correct. A discrete random variable is qu
Which of the following is a discrete random variable?
Gender of a Holland Lop rabbit.
Number of baby bunnies in a Holland Lop does nest.
Weight of a Holland Lop baby bunny.
Feedback
Correct. A discrete random variable is quantitative and has any
value fro
Question 1
Points: 10 out of 10
This histogram shows the distribution of exam scores for a class of
33 students.
Which of the following is the most reasonable estimate of the IQR
(interquartile range)?
25
50
75
0 to 100
Feedback
Correct. The IQR is the ra
Question 1
Points: 10 out of 10
Researchers created a new fertilizer. They conducted an
experiment to compare the new fertilizer to the old fertilizer. They
divided tomato plants into two groups. They applied the new
fertilizer to one group and the old fe
Pumpkin patch: Suppose we plant pumpkins in a garden where
half of the plants are shaded. Then, to test a new fertilizer, we
fertilize the plants in full sun and do not fertilize the plants in the
shade. In the fall the fertilized plants yield more, bigge
Whooping cough vaccine: Some parents fear that vaccinations
may have adverse long-term effects on their childrens health. In
2009, the Journal of the American Academy of Pediatrics published
research on a routine childhood vaccine for whooping cough. The
Newborn Brain Damage
Researchers studied 208 infants whose brains were temporarily
deprived of oxygen due to complications at birth. When researchers
detected oxygen deprivation, they randomly assigned babies to
either usual care or to a whole-body coolin
Question 1
Points: 10 out of 10
Which of the following is an example of a census?
Poll students at a college by including a pop-up
window in the online registration form. Students have to
answer the survey questions before they can register.
Try to catch
Which of the following is an example of a census?
Poll students at a college by including a pop-up
window in the online registration form. Students have to
answer the survey questions before they can register.
Try to catch the remaining students at the ad
Question 1
Points: 10 out of 10
Which of the following is an example of a census?
Survey students about the college class schedule by
randomly selecting 500 from the colleges enrollment
records.
To determine the median income of all working U.S.
adults, a
Quiz 5
February 17
GSI: Chris Miller
Section 114
Spring 2017
Name:
Problem 1. (3 points) Mark each of the following as true or false. For the following, V
and W are finite dimensional vector spaces with bases and , respectively. T : V W
is linear and A, B
Math 242 Final Exam Study Guide
College of San Mateo - Dr. Christopher Walker
Chapter 6 - The Definite Integral
Antiderivative Formulas
Power rule
Exponentials
Logarithms
Fundamental Theorem of Calculus
Z b
f (x)dx = F (b) F (a)
a
Interpretations
N