Single 2 Married 3 Divorced/Separated 4 Widowed/Widower 5 Others Cold Deck for Age Head Spouse Child Parent Brother/Sister Other Relative Non Relative Male 38 35 12 61 29 26 24 Female 39 41 10 65 31 30 48 1. Show how missing values for age could be imputed using COLD deck imputation technique 2. Show how missing values for age could be imputed using HOT deck imputation technique. Imputation using Cold Deck - Imputation of missing values using a constant value from an external
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AP Chemistry Lab 2: Analysis of Alum Lab Objective: In this lab we will analyze alum by two techniques in order to verify its identity. The melting point and the mole ratio of hydrated water to anhydrous aluminum potassium sulfate will be determined. Lab Procedure: 1. Use a mortar and pestle to crush alum. 2. Pack the alum in capillary tube‚ and then fasten it to the thermometer. 3. Fasten the thermometer to the ring stand. 4. Immerse the bottom of the
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Chemistry 11 Final Examination Review - Answers Part A - True or False. Indicate whether each of the following statements is true or false. Correct the false statements. F 1. The mass of an electron is equal to the mass of a proton. The mass of an electron is less than the mass of a proton. T 2. The mass of a proton is approximately equal to the mass of a neutron. T 3. The atomic number represents the number of protons in a nucleus. T 4. The proton has a mass of approximately
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Single replacement reaction of sodium Observations Test tube was hot after reaction; exothermic reaction took place; sodium was malleable; when sodium was added to diH2O it popped and fizzled; solution turned pink when phenolphthalein was added. Reactants: Na and H2O Products: H2 and NaOH Balanced chemical equation 2Na + 2H2O 2NaOH + H2 Table 8.4- Single replacement reaction of lithium Observations Test tube was hot after reaction; exothermic reaction took place; lithium was not malleable;
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Maggie Mitchell IB Chemistry Prd. 5 THE HALOGENS LAB Date: 9/11/13 Purpose: The purpose of this experiment was to observe and record the halogens’ (NaF‚ NaCl‚ NaBr‚ and KI) reactions with the chemicals Ca(NO3)2‚ AgNO3‚ and NH4OH and use these observations to identify an unknown halogen. Data: (see next page) TABLE 1: REACTIONS OF HALOGENS WITH CA(NO3)2‚ AGNO3‚ AND NH4OH REACTION NAF NACL NABR KI REACTION W/ CA(NO3)2 solution turns cloudy and precipitate forms clear precipitate
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ab reportChemistry 117L Laboratory Report Name: Aneesa Noorani Lab Day: Tuesday Lab Room: SCL 114 Date of Experiment: January 22‚ 2013 TA: Mikhail 1. Basic Laboratory Skills Purpose(s) of the Experiment: The purpose of the first part of today’s experiment is to establish the stoichiometry of the reaction between titrate oxalate (C2O42-) and permanganate (MnO4-). The purpose of the second part of today’s experiment is to learn about the concepts of the rate of chemical reactions
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In " The Right Way to Pack for a Hot Air Balloon Race" the informative and concerned tones reflect the author’s thoughts of Cheri White. Although the author is writing for a newspaper article‚ a reader can tell that Hilary Potkewitz‚ the author‚ shows that she is interested in White’s hot air balloon life. Potkewitz’s diction reflects how interested she in sharing Cheri White little biography of her hot air balloon life. The author refers to Ms. White as "a decorated pilot of a no-so-precision
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CIVIL LITIGATION AND DISPUTE RESOLUTION (Corporate) RESOURCE PACK Objectives: You should regard this pack as a tool to help you understand the CPR in context and to start drafting the legal documents covered by it. You are encouraged to add your own precedents as you collect these and to file your case papers for the 2 case studies in the sections provided. This pack contains details of both the CPR and some of the documents that are drafted by solicitors during the different stages of Civil Litigation
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IB1 Chemistry Practical #8 ANALYSIS OF ASPIRIN TABLETS For a long time the bark of the willow tree (salix alba) was used as a traditional medicine to relieve the fever symptoms of malaria. In the 1860’s chemists showed that the active ingredient in willow bark is salicylic acid (2-hydroxybenzoic acid) and by 1870 salicylic acid was in wide use as a pain killer (analgesic) and fever depressant (antipyretic). However‚ because it is a relatively strong acid‚ salicylic acid has the undesirable side effect
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CHEM/ENCH 212 EXPERIMENT II: KINETICS OF NUCLEOPHILIC SUBSTITUTION DATE OF SUBMISSION: Table of Contents Experimental Table : Hazardous properties of chemicals used in the experiment.[1] Acetone Irritant. Do not inhale vapors. Highly flammable. 2 chloro‚ 2 methyl propane Flammable. Equipment 1. Conductivity probe 2. Constant temperature water circulation bath 3. Stir-plate with stirring magnets
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