STA100 - General Mathematics and Biostatistics

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Re: STA100 Assignment 1 Solution and Discussion

Course Title General Mathematics and Biostatistics Course Code STA100 Activity Assignment # 2 Submission Deadline Date: Saturday, Feb 02, 2020 Time: 23:59 Hours (Midnight) Instructions to attempt assignment: • For writing symbols, use Math Type software. If you already did not download it. • Use calculator for calculations. • Write the complete formulas and all steps, wherever necessary. • Make your own attempt, any copy/past; cheating from other student/website may result in ZERO marks and/or assignment cancelation. Question # 1: Consider the data obtained from a chemical process where the yield of the process is thought to be related to the reaction temperature (see the table below). Observation Number Temperature (x) Yield (y) 1 50 122 2 53 118 3 54 128 4 55 121 5 56 125 6 59 136 7 62 144 8 65 142 9 67 149 10 71 161 11 72 167 12 74 168 13 75 162 14 76 171 15 79 175 Draw a best fit line which is obtained by solving simultaneously “Normal Equations”. Question # 2: The local ice cream shop keeps track of how much ice cream they sell versus the temperature on that day to find out Correlation, here are their figures for the last 12 days: Ice Cream sale vs Temperature Temperature 14.2° 16.4° 11.9° 15.2° 18.5° 22.1° 19.4° 25.1° 23.4° 18.1° 22.6° 17.2° Ice Cream Sale $215 $325 $185 $332 $406 $522 $412 $614 $544 $421 $445 $408

Course Title General Mathematics and Biostatistics Course Code STA100 Activity Assignment # 1 Instructions to attempt assignment: • For writing symbols, use Math Type software. If you already did not download it. • Use calculator for calculations. • Write the complete formulas and all steps, wherever necessary. • Make your own attempt, any copy/past; cheating from other student/website may result in ZERO marks and/or assignment cancelation. Question # 1 Solved by Crammer Rule [image: SBTolUk.png] Question # 2 Find the general term and the eleventh term of the A.P. who’s first term and the common difference are 2 and -3 respectively. Also write its first four terms.