MATH 1131 3.00 A S1
Assignment 1
Total marks = 65
Question 1: Water quality ratings (A, B, C, D, F) which reect the risk of
getting sick from swimming at any particular one of 36 Southern California
beaches, are given in the following list:
A
A
A
D
D
A
A
Chapter 08
MULTIPLE CHOICE
1. Which of the following accurately describes a hypothesis test?
a. A descriptive technique that allows researchers to describe a sample
b. A descriptive technique that allows researchers to describe a population
c. An inferent
MATH 1131 3.00 A S1
Assignment 2
Total marks = 55
Question 1: A contractor is required by a county planning department
to submit anywhere from one to ve forms (depending on the nature of the
project) in applying for a building permit. Let r.v. X = the num
MATH 1131
Assignment # 2 Solutions [25 marks]
Fall 2016
INSTRUCTIONS (Please read carefully): Due Friday, October 7, 2016, by NOON (12pm) in the drop
box labeled MATH 1131 B, V. MICHKINE. Drop boxes are located on the 5th floor of ROSS NORTH by
the elevat
YORK UNIVERSITY
SC/MATH 1131 B
TEST #1 SOLUTIONS
The total number of points for the Test is 75.
1. (5+5+5 points) (a) Young drivers tend to be more involved in automobile crashes
than older drivers. This may be attributed to risky driving and inexperience
-Lab Week 4
-Use the GolfClub Database.
-1 List the average barbill by member type. Sequence the output, highest to
lowest average.
select avg(Barbill) as "Average" , MemberType from Member
group by MemberType
order by avg(Barbill) desc;
-2 List the total
Name:
Section:
MEMBER TABLE
TOURNAMENT TABLE
TOURENTRY TABLE
-1 List the average barbill by member type. Sequence the
output, highest to lowest average.
-2 List the total barbill for each team but only show the
teams where the total is less than $100
-3 L
Class 3 ITM 500 February 2nd 2017
SELECT: Fields/Attributes
FROM: Table Name
WHERE: Attribute (Operation =><) Value
Name like (N %) name that starts with N
ORDER BY (attributes)
% Any number of character
_ One character
Example 1: Name like (N%)
Any nam
Nested Query or Sub Query
When to use Nested Query?
Nested Query or SubQuery
Subqueries must be enclosed within parentheses.
A subquery can have only one column in the
SELECT clause.
An ORDER BY cannot be used in a subquery.
Subqueries that return mor
Week 6 Lab
Using the Erwin Software construct a logical data model using the IE notation to fit the following
circumstances. Place all 5 solutions in a single Erwin file for convenience
Draw data models for the following situations. In each case show also
Nested Query or Sub Query
When to use Nested Query?
Group by and Aggregate Functions
Group by and Aggregate functions (e.g., max,
min, avg, count, sum) are closely related
Need Aggregate function?
Most likely you need group by
Except when the aggregat
MATH 1131
Assignment # 3 Solutions [25 marks]
Fall 2016
Note: you may use a statistical software program to create the graphs, or you can do them by
hand. For those students who wish to use software, the technology corner in your textbook
maybe useful. Wh
MATH 1131
Assignment # 4 Solutions [25 marks]
Fall 2016
Note: where appropriate, show your work, state any variables and formulas used in your
solution, and leave answers to three or more decimal places. Assignment solutions may be
hand-written or typed.
MATH 1131 3.00 A S1
Assignment 3
Total marks = 50
Question 1: On your shelf, you have four books that you are planning
to read in the near future. Two are ctional works, containing 212 and 379
pages, respectively, and the other two are nonction, with 350
Final Assignment
Geography 2420 Fall 2015
Taly Drezner
Section 03
213 241 658
Olivia Kazmierczak
Introduction
What is being tested if there is a difference in the amount of females compared to males at the gym as
well as the exercise that they doing. For
The Practice of Statistics for
Business and Economics
Third Edition
David S. Moore
George P. McCabe
Layth C. Alwan
Bruce A. Craig
William M. Duckworth
2011 W.H. Freeman and Company
Examining Distributions
Displaying Distributions with Graphs
PSBE Chapter
Introductory Statistics:
A Problem-Solving Approach
by Stephen Kokoska
Chapter 7
Sampling Distributions
Copyright 2015 by W. H. Freeman and Company. All rights reserved.
1
Parameter and Statistic
A parameter is a numerical
descriptive measure of a
populat
Introductory Statistics:
A Problem-Solving Approach
by Stephen Kokoska
Chapter 5
Random Variables and
Discrete
Probability Distributions
Copyright 2015 by W. H. Freeman and Company. All rights reserved.
1
5.1 Random Variable
A random variable is a functio
Introductory Statistics:
A Problem-Solving Approach
by Stephen Kokoska
Chapter 2
Tables and Graphs for
Summarizing Data
Copyright 2015 by W. H.
Freeman and Company. All
rights reserved.
1
Tables, Charts, Graphs
Used to organize and summarize data.
1.
2.
3
Introductory Statistics:
A Problem-Solving Approach
by Stephen Kokoska
Chapter 9: Hypothesis Tests
Based on a Single Sample
Copyright 2015 by W. H. Freeman and Company. All rights reserved.
1
Hypothesis
In statistics, a hypothesis is a
declaration, or cla
Introductory Statistics:
A Problem-Solving
Approach
by Stephen Kokoska
Chapter 3
Numerical Summary
Measures
Copyright 2015 by W. H.
Freeman and Company. All
rights reserved.
1
3.1 Measures of Central
Tendency
Tabular and graphical techniques
provide usefu
Introductory Statistics:
A Problem-Solving Approach
by Stephen Kokoska
Chapter 6
Continuous Probability
Distributions
Copyright 2015 by W. H. Freeman and Company. All rights reserved.
1
Probability Density
Function
Copyright 2015 by W. H. Freeman and Comp
Introductory Statistics:
A Problem-Solving Approach
by Stephen Kokoska
Chapter 8: Confidence
Intervals Based on a Single
Sample
Copyright 2015 by W. H. Freeman and Company. All rights
reserved.
1
Introduction
A single value of a statistic
computed from a
Self Referencing and Join
How to use them
Self Referencing- If an attribute of a table refers
to another attribute of the same table
FacSuprSSN refers to the FacSSN - supervisors are
also faculty
VINCEs FacSuprSSN is 654321098
Faculty with FacSSN 65432