PQT(UNIT-1)

THE PROBABILITY MASS FUNCTION OF ONE DIMENTIONAL DISCRETE RANDOM VARIABLE IS DENOTED BY

• p(x)

• f(x)

• p(x,y)

• f(x,y)

THE PROBABILITY DENSITY FUNCTION OF ONE DIMENTIONAL CONTINUOUS RANDOM VARIABLE IS DENOTED BY

• p(x)

• f(x)

• p(x,y)

• f(x,y)

THE TOTAL PROBABILITY VALUE IS EQUAL TO

• 0

• 1

• -1

• none of the above

E(Ax+B) IS EQUAL TO

• E(A)

• AE(X)+B

• E(X)+B

• CONSTANT

VAR(aX+b) IS EQUAL TO

• a^2VAR(X)

• .AE(X)+B

• E(X)+B

• CONSTANT

VAR(CONSTANT) IS EQUAL TO

• 1

• constant

• 0

• none of the above

E(CONSTANT) IS EQUAL TO

• 1

• constant

• 0

• none of the above

THE MOMENT ABOUT THE MEAN IS CALLED

• 0

• raw moment

• central moment

• none of the above

THE MOMENT ABOUT THE ORIGIN IS CALLED

• raw moment

• 0

• central moment

• none of the above

THE VALUE OF FIRST MOMENT ABOUT MEAN IS CALLED

• 2

• 0

• -1

• 3