LQ1LN02SOLNWF11

# LQ1LN02SOLNWF11 - Lab Section 02 SOLUTIONS MATHEMATICS...

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PLEASE TURN OVER Lab Section 02 MATHEMATICS MATH*1080 Lab Quiz #1 W SOLUTIONS NO CALCULATORS ALLOWED Surname: Initials:___________ Lab Section #___ (PRINT) _____________ Student #: Class Section #______________ "8 œ " ! ß . Assume that for a set of data points that exhibits a linear pattern ÐB ß C Ñ 33 !! ! ! 3œ" 3œ" 3œ" 3œ" 88 8 8 3 3 3 # B œ \$!ß C œ "#!ß B œ "#!ß B C œ %&!Þ and Use the formula 8,  B 7 œ C ˆ‰ 3œ" 3œ" ! 3œ" 3œ" 3œ" 8 3 3 # B, B7œ B C to determine the Least Squares Line that fits these data points. Cœ7B, 3 SOLUTION From the formula and the given values 8,  B 7 œ C Ê "!,  \$!7 œ "#! ÞÞÞ " 3œ" 3œ" 1 !!! 3œ" 3œ" 3œ" 888 3 3 # B ,  B 7 œ B C Ê \$!,  "#!7 œ %&! ÞÞÞ # M u l t i p l e 3 \$ ‚ " Ê \$!,  *!7 œ \$'! ÞÞÞ 1 C o m p u t e 3 : #  \$!7 œ *! Ê 7 œ \$ Substitute in and solve for : " , "!,  \$!Ð\$Ñ œ "#! Ê "!, œ \$! Ê , œ \$ 1 Least Squares Line: Cœ\$B\$ 2. On joining a real estate firm, an employee must choose one of two salary options based on the monthly net profit. Let denote the monthly net profit in dollars. B Option A: The monthly salary ( ) is \$1,400 plus 5% of the monthly net profits.

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LQ1LN02SOLNWF11 - Lab Section 02 SOLUTIONS MATHEMATICS...

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