Homework01solutions

# Homework01solutions - Homework 1 Solutions Problem 1 Output from an Excel worksheet Problem 1 using =FACT(20/FACT(5/FACT(20FACT 5 using

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Homework 1 Solutions Problem 1 Output from an Excel worksheet: Problem 1 15504 using FACT() =FACT(20)/FACT(5)/FACT(20- 5) 15504 using COMBIN()=COMBIN(20,5) Colorado Lotto 5245786 ways =COMBIN(42,6) odds: 1 in 2622893 for 2 tix (= 5245786/2) Problem 2 2-4. Sample average : x x n x i i n i i ==== == ∑∑ 11 18 18 2272 18 126 22 .k N Sample standard deviation : xx s x x n n kN i i i i i i n i i n = = () = = = 2272 298392 1 298392 2272 18 18 1 11615 11 17 683 24 26 14 1 18 2 1 18 2 2 1 1 2 2 2 . .( ) N Dot Diagram : . : :: . :: . . : . . +---------+---------+---------+---------+---------+-------yield 90 105 120 135 150 165

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Problem 3 2-8. The stem and leaf display for weld strength N = 100 Leaf Unit = 1.0 1 532 9 1 533 2 534 2 4 535 47 5 536 6 9 537 5678 20 538 12345778888 26 539 016999 37 540 11166677889 46 541 123666688 (13) 542 0011222357899 41 543 01111556 33 544 00012455678 22 545 233447899

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## This note was uploaded on 10/11/2011 for the course CHEN 3010 taught by Professor Kompala,dh during the Spring '08 term at Colorado.

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Homework01solutions - Homework 1 Solutions Problem 1 Output from an Excel worksheet Problem 1 using =FACT(20/FACT(5/FACT(20FACT 5 using

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