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Let x̅1 and x̅2 (where x̅2 > x̅1) be the means of two sets comprising n1 and n2 (where n2 < n1) observations respectively. If x̅ is the mean when they are pooled, then which one of the following is correct?
Which of the following explain the concept of values? (A) Values are beliefs tied inextricably to human emotion and behaviour (B) Values refer to desirable goals people strive to attain (C) Values are conflict-free (D) Values are ordered by importance relative to one another (E) Values are utilized primarily to effect change in knowledge of a person Choose the correct answer from the options given below :
Which of the following statements are correct with the origin and development of values?
1. Values originate from human desires and interests.
2. Interaction between individuals in environment and situations originate values.
3. It is human being who originates values and protects it.
4. Attitude of an individual is based on values.
A truth function is referred as
1. set of truth values.
2. infinite number of truth values.
3. finite number of truth values.
4. set of false values.
Select the correct answer:
In the question below, some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: I. All Eagle are Lizard. II. All rabbit are snake. III. All snake are Eagle. Conclusions: I. All Rabbit are Lizards. II. All Eagle are Rabbit. III. All Lizard are Snake. IV. All Snake are Lizard. 
Consider a database table T containing two columns X and Y each of type integers. After the creation of the table, one record (X= 1, Y=l) is inserted in the table. Let MX and MY denote the respective maximum values of X and Y among all records in the table at any point in time. Using M X and MY, new records are inserted in the table 128 times with X and Y values being MX + 1, 2*MY + 1 respectively. It may be noted that each time after the insertion, values of MX and MY change. What will be the output of the following SQL query after the steps mentioned above are carried out? SELECT Y FROM T WHERE X=7;
Three statements are given, followed by four conclusions numbered I, II, III and IV. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements. Statements: All books are pens. All pens are erasers. All erasers are files. Conclusions: I. All pens are files. II. All pens are books. III. All files are books. IV. All files are pens.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: i. All lipsticks are makeup. ii. All makeups are beauty products. iii. All beauty products are skincare. Conclusion: A. All makeups are skincare. B. All beauty products are lipsticks. C. All lipsticks are skin care. D. All skincare are makeup. 
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All Books are Pens. All Pens are Erasers. All Erasers are Files. Conclusions: I. All Pens are Files. II. All Pens are Books. III. All Files are Books. IV. All Files are Pens.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow from the statements. Statements: 1. All parakeets are cuckoos. 2. All cuckoos are rabbits. 3. All rabbits are snakes. Conclusions: I. All parakeets are snakes. II. All snakes are cuckoos. III. All rabbits are parakeets. IV. All cuckoos are snakes.