Which of the following is a measure of central tendency?

Statements: M = R ≥ S , N = O > Q, Q > W = A < S

Conclusions :I. N ≥ S

II. W > R

III. O ≤ S

Statements: T = S, U ≤ V, P < K, U ≤ K, V > S

Conclusion:

I. S ≥ U

II. S < U

Statements:       A % B & Z % F; F # C & E; E @ P # D

Which of the following symbols respectively should replace the question marks in order to make the expression V ≥ M and X ≤ H definitely true?

Statement: T > U ≥ V; T ≤ W = X; I > U

Conclusion: I. U < X          II. I > T

Statements:

E ≤ A > J ≥ L; Y > J < D

Conclusions:

I. D > L

II. A > L

Statements: A > B > C, C < D > E, E = F > G

Conclusion:

I. C = G

II. A > F

Statements: 

I @ Y © Z * A $ M 

Conclusions: 

I. Z * M 

II. A % Y 

III. A % I

Statements: P > Q = R ≤ S; R > T > U; U = Z ≥ O

Conclusions:

I. P > U

II. O < S

III. R > P

Statements:

O ≤ P = Y ≤ U; L > G ≥ W = Q ≥ Y; G < A ≤ R < D

Conclusions:

I. P < R

II. G ≥ P