STAT 208 16/05/2014 Quiz 4 1. (8-28) (18 points) An Izod impact test was performed on 20 specimens of PVC pipe. Assume that the population is normally distributed. The sample mean is ̅ and the sample standard deviation is . Find a 99% lower confidence bound on Izod impact strength. Sol: 99% lower confidence bound on mean Izod impact strength n 20 x 1.25 s 0.25 t0.01‚19 2.539 s x t0.01‚19 n 0.25 1.25 2.539 20 1.108 2. (28-5) (18
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Propositions The fundamental objects we work with in arithmetic are numbers. In a similar way‚ the fundamental objects in logic are propositions. Definition: A proposition is a statement that is either true or false. Whichever of these (true or false) is the case is called the truth value of the proposition. Here are some examples of English sentences that are propositions: ‘Canberra is the capital of Australia.’ ‘There are 8 days in a week.’ ‘Isaac Newton was born in 1642.’ ‘5 is greater
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Write your name here Surname Other names Edexcel Certificate Edexcel International GCSE Centre Number Candidate Number Mathematics A Paper 1F Foundation Tier Friday 11 May 2012 – Afternoon Time: 2 hours Paper Reference 4MA0/1F KMA0/1F You must have: Total Marks Ruler graduated in centimetres and millimetres‚ protractor‚ compasses‚ pen‚ HB pencil‚ eraser‚ calculator. Tracing paper may be used. Instructions Use black ink or ball-point pen. Fill in the boxes
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NATIONAL SENIOR CERTIFICATE GRADE 11 MATHEMATICS P2 EXEMPLAR 2013 MARKS: 150 TIME: 3 hours This question paper consists of 12 pages and 3 diagram sheets. Copyright reserved Please turn over Mathematics/P2 2 NSC – Grade 11 Exemplar DBE/2013 INSTRUCTIONS AND INFORMATION Read the following instructions carefully before answering the questions. 1. This question paper consists of 11 questions. 2. Answer ALL the questions. 3. Clearly show ALL calculations
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Sing Yin Secondary School First Term Examination‚ 2009 – 2010 Mathematics 1 Form 3 Full marks: 100 Answer ALL questions. Unless otherwise specified‚ all working must be clearly shown. The diagrams in this paper are not necessarily drawn to scale. Unless otherwise specified‚ numerical answers should either be exact or correct to 3 significant figures. 1. 2. Time allowed: 1.5 hours Simplify 2 8 + 24 . x 2 − 5x − 6 ‚ x 3 − 27 . ( ) (4 marks) Factorize (a) (b) (4 marks) (4
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22. Conditional- if it is a line then it contains at least two points Inverse- if it is not a line then it does not contain at least two points Converse- If it contains at least two points then it is a line Contrapositive- if it does not contain at least two points‚ then it is not a line 23. Conditional- If there are 3 noncollinear points‚ then there is exactly one plane Inverse- if there are not exactly 3 collinear points‚ then there is not exactly one plane Converse- if there is exactly one
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Mathematical Database MATHEMATICAL INDUCTION 1. Introduction Mathematics distinguishes itself from the other sciences in that it is built upon a set of axioms and definitions‚ on which all subsequent theorems rely. All theorems can be derived‚ or proved‚ using the axioms and definitions‚ or using previously established theorems. By contrast‚ the theories in most other sciences‚ such as the Newtonian laws of motion in physics‚ are often built upon experimental evidence and can never be
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1 Asgn 3 Macao Polytechnic Institute School of Business Bachelor of Art in Public Relation Programme st 1 Semester‚ Year 2012/13 Math211521122‚ Assignment III P1103808 Leong Lai Nga‚ Delia Write down your full name and student ID on the first page. Handin your assignment on or before nd the day of 2 midterm. 1. Blood Glucose Level . In the article "Drinking Glucose Improves Listening Span in Students Who Miss Breakfast" ( Educational Research ‚ Vol. 43‚ No. 2‚ pp.201207)
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Observing Math Instruction Jeraldine Smith Grand Canyon University EED 364 Amanda Bruce September 23‚ 2012 On September 20‚ 2012 I observed in Mr. Jones 1st grade math class. The lesson was based on how to teach addition and subtraction to first grader. In this paper I will be observing an elementary mathematic lesson based on a math standards. The standards The National Council of Teachers of Mathematic (NCTM) are to guide educators on how to teach math the correct way. In comparing
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MATH RATIONALE “The mathematic mind is a mind that is especially interested in mathematics. Rather than find them boring and absurd‚ they find them interesting and absorbing. It is a fact that most children in our Montessori schools manage to achieve great enthusiasm while working with mathematics. Is the preparation of their minds that allows them to reach this pleasure." Maria Montessori‚ London Lectures‚ 1946‚ p 41 Mathematics has always been a difficult subject for students. Many children
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