Corrected Week 2; Quiz 2

Corrected Week 2; Quiz 2 - Question : According to the...

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Unformatted text preview: Question : According to the definition of "statement" in Appendix A.1, "If x = 4, then x+1 = 9" is a statement. c. a game-- - .tuclent n.x.r. 3.1m False Instructor "lfx = Ar then x+1 = 9" is a statement. Even though the statement has a false value, it is still a statement. See a similar question on page 582 question 3. Explanation: Points Received: Comments: Question : According to the definition of "statement" in Appendix A.1r "Go home now!" is not a statement. Student Answer: True C' False Instructor "Go home now!" is a command, not a statement. See page 575 for examples. Explanation: Points Received: Comments: Question : The negation of the statement ""All fish can swim" is "Some fish can swim". Student Answer: x g. True " False Instru:tor See Example A? on page SFE. Explanation: 4. Question : The converse oi the statement "If I win, then I go swimming“ is "It I go swimming, then I win". Q' True False Instructor . it "ill Explanation: is l _lll ." See asimilar question on page 583 question 33. On page SEQ of the textbook, the converse o Points Received: 4 of 4 Comments: Question : Aoooroing to the definition of "statement" in Appenoiuht, "5+3=2“ is a statement. Q' True False Instructor “5+3=2" is a statement. Even though the statement has a lalse value, it is still a statement. See page 5T4 for examples. Explanation: Points Reeeiveo: Comments: Question : The negation of the statement “Some singers live in Kansas City " is " llo singers live in Kansas City Q' True False Instructor See Evample M on page STE. Explanation: Questiun : t Pd ~P The staternen is a tautulugy. Strider! irsne': . True J 9 Taise trst 'uctc' E ‘ [r Build a truth table to decide whether this statement is a tautulugu. Since there is une variable a, the size at the truth tahle (nut cuunting the header raw] is 2 rows (i.e., 21]. Since up are he: culumn W Hp dues nut haue ail true value, su the statement is nut a tautulugu. See Errarnpie M an page 534. See sirniiar duestiuns on page 536 EXETCTSESM. Puints Received: Curnrnents: Question: (parteiirdrflhnh The staternent is a tautulugu. Q :s Lauri sludert J I W X 9 Faise 1'15! “[3- Build a truth table to decide whether this statement is a tautulugu. Since there are 2 variables p and q, the size ut the truth tahle (nut cuunting the header run] is 4 rows (he, 22]. Eiiuiaralicr: Since culumn (’0 Wide“ qddi p hasalltrueuaiue'suthestaternentisatautuiugu.SeeEtarnpleA.SunpageSdt.SeesirnilaruuestiunsunpageSBfiEtercisesA.2. Question 1 The contraoositive of the statement "If I win, then I go swimming" is "If I do not go swimming, then I do not win“. C :\ -'-'i.:-i:'l .tiid.it-i..... J “M , False lvst'uctc' N M Ephraim.l [tngageSBUofthetevthoolr,theconverseotll _lllisl lllil ll l.Seeasimilarguestion on pageSBSouestionSS. Points Received: 4 of 4 Comments: to. Question : True or False. The following 2 statements are logically equivalent. Statement I: lit drink millr, then I groivtall. Statement 21 Ill do not growtall, then I do not drinlc milk. Q :\ Lama-I .tud.it J I W ll 9 False ll‘Sl'tIClC' c N Warming Usinggandgsvmhols,statementtisll _lllandstatemeit2isl [ll—ll ll l.Buildatruthtahleto decide whetherthese statementsare logicallveguivalent. Sincethere are2 variahles o and g, the size of the truth tahle (not counting the header row] is 4 rows (he, 22]. Since column ll _lll and column l~ [ll _ll~ pl have the same value For all cases, these two statements are logically equivalent. See Example no on page 585. ...
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Corrected Week 2; Quiz 2 - Question : According to the...

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