Online Assignment for Business Math 3rd Set
| Q.No. | Question | Option A | Option B | Option C | Option D |
| 1 | There are 8 students on the curling team and 12 students on the badminton team. What is the total number of students on the two teams if three students are on both teams: | 20 | 17[Ans] | 15 | 14 |
| 2 | IfA={a,{b}} frndP(A) | {0,{a},{{b}},{{a},{b}}}[Ans] | {{a},{{b}},{{a},{b}}} | {0,{{b}},{{a},{b}}} | {0,{{b}},{{a},{b}} |
| 3 | Determine the total number of subsets of the following set: {h,i, j, k, 1, m, n} | 128[Ans] | 64 | 32 | 14 |
| 4 | If A= {2,3,4,5,6,7} B={3,5,7,9,11,13} then A-B | {2,4,6}[Ans] | {4,6,7} | {9,11,13} | {3,4,6} |
| 5 | Which output expression might indicate a product -of-sums circuit construction? | A • (B • C) = (A • B) + C | A+(B + C) = (A-B) + (A-C) | A • (B + C) = (A • B) + (A-C) [Ans] | (A + B) + C = A + (B + C) |
| 6 | The value that occurs most frequently in a data set is the | Mean | Standard deviation | Mode[Ans] | Median |
| 7 | Use the union rule to answer the question. Ifn(A) = 24,n(B) = 69, andn(AUB) = 81; what is n(A PI B)? | 36 | 12[Ans] | 6 | 14 |
| 8 | The number of elements in the power set P(S) of the set S={{0},1,{2,3}} | 2 | 4 | 8[Ans] | 3 |
| 9 | Let U = {q, r, s, t, u, v, w, x, y, z}; A = {q, s, u, w, y}; B= {q,s,y,z} , C= {v,w,x,y,z}and List the members of the indicated set, using set braces (A UB)’ | {t,v,x} | {r, t, v, x} | {s, u, w} | {r, s, t, u, v, w, x, z}[Ans] |
| 10 | If A and B are two sets, A ∩ B represents: | all elements in either A and B[Ans] | all elements in both A and B | all elements that are in A but not B | all sets that include A and B |
| 11 | A non empty set S which is closed with a binary operation ‘*’ is called group if | The binary operation is associative | There exists identity element with respect to the binary operation. | There exist a unique inverse of each element of S with respect to the binary operation | All A, B & C hold. [Ans] |
| 12 | There are thirty-four possible (not isomorphic) graphs with five vertices. Which of the following graphs is isomorphic to its OWN compliment? | The complete graph on five vertices. | The cyclic graph on five vertices. [Ans] | The path graph on five vertices. | The null graph on five vertices. |
| 13 | An isomorphism can be proven between a graph T and a graph B if their complements are isomorphic. | TRUE[Ans] | FALSE | Both a & b | Undetermined |
| 14 | Which of the following sets are semigroups? |
The natural numbers with respect to binary operation addition. |
he set of words over a finite alphabet with the operation v * w = vw of putting the words together. |
he set of all subsets of a finite set with the operation A * B = AUB. |
both a & c[Ans] |
| 15 | The power set of an empty set is | null set | singleton set | super set | Power Set[Ans] |
| 16 | Let p be “He is tall” and q be “He is handsome “The symbolic form of the Statement “It is false that he is short or handsome” is |
~(~pVq) [Ans] | (~pVq) | ~(~PAq) | (~ P A q ) |
| 17 | Write the statement in symbols using the p and q given below. . q = The food is good p = I eat too much. If the food is not good, I won’t eat too much. |
~q -> ~p[Ans] | q->~p | q->p | p->~q |
| 18 | Truth Table: ~(P=>Q)<=>(PA~Q) I believe I am on the right path with the following: P Q P=>Q ~(P=>Q) ~Q PA~Q is |
ttttftftt | fttfff[Ans] | tffttt | fftftf |
| 19 | You are given a binomial random variable with n = 25 and p = 0.35. The mean for the random variable is |
8.25 | 8.75[Ans] | 8 | 7.85 |
| 20 | Let p represent the statement, “Jim plays football”, and let q represent “Michael plays basketball”. Convert the compound statements into symbols. It is not the case that Jim plays football and Michael does not play basketball. |
~pAq | ~pA~q | ~(pAq) [Ans] | ~(pA~q) |
| 21 | The Contrapositive of the following implification is> a) If it is hot, then I take a drink. |
If I do not take a drink, then it is not hot. [Ans] | If it is hot, then I take a drink. | If I take a drink, then it is hot. | If it is not hot, then I do not take a drink. |
| 22 | In a normal curve, the line of symmetry for each half of the figure represents which score? | mean | . median | mode | All the above[Ans] |
| 23 | given that ( p Vq ) A (~ p V ~ q ) is false, the truth values of p & q are | both false | both true | p true & q false[Ans] | p false & q true |
| 24 | Which of the following is TRUE | The set of all rational negative numbers forms a group under multiplication | The set of all non singular matrices forms a group under multilication | The set of all matrices froms a group under multiplication | Both b & c are true[Ans] |
| 25 | G{e , a, b ,c} is an abelian group with e as identity element The order of the other elements are | 2,2,3 | 3,3,3 | 2,2,4[Ans] | 2,3,4 |
| 26 | If the binary operation * is defined on set of ordered pairs of real numbers s ( a,b)8(c,d) = (ad+bc,bd) and is associative ,then (1,2) *(3 ,5) *(3,4)= | (74,40) | (32, 40) | (23, 11) | (7,11) [Ans] |
| 27 | Which of the following statement are FALSE | The set of all rational numbers is an abelian group under addition | The set of all rational integers is an abelian group under addition | The set of all rational numbers form an abelian group under multiplication | None of these[Ans] |
| 28 | If a and b are positive integers .define a* b= a where a .b E O(modulo 7),with this * operation,the inverse of 3 in group G {1,2,3,4,5,6} is | 3[Ans] | 1 | 5 | 4 |
| 29 | Let A be non singular matrices over real numbers and let * be the matrix multiplication operator Then |
A is closed under* but < A, *> is not a semi group |
< A, *> is semi group but not a monoid[Ans] |
< A, *> is a monoid but not a group |
< A, *> is a group but not an abelian group |
| 30 | The conjunctive normal form of the following is pA(p^q) | qAp | pAq[Ans] | p^q | q^p |
