exam
Maths Puzzle
Numerical Ability
is this perpendicular
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exam Other Question
Please help me with thses 2 problems and thanks
Factor completely: 9x^2-16y^2
Factor completely: 3x^2-2x-8
Expectation and variance of a random variable
Let be a random variable with the following probability distribution:
Value of
-2 -0.15
-1 -0.10
0 -0.35
1 -0.40
Fin