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GENERAL RULE
A general rule is to subtract the probabilities with an even number of components inside the parentheses and add those with an odd number of components (one or three) to arrive at the probability of events.
Example
Consider a bag containing 4 white and 5 black balls. A man draws 3 balls at random; let us see what is the probability that all three are black?
The total number of ways in which 3 balls can be drawn is 9C3and the number of ways of drawing 3 black balls is 5C3therefore the probability of drawing 3 black balls is given by
P(All three are black)
WHICH LIFE PROBLEMS CAN BE SOLVED USING THE KNOWLEDGE OF DIFFERNTIAL EQUATIONS?
Prove: 1/cos2A+sin2A/cos2A=sinA+cosA/cosA-sinA
what is solid geometry and uses of solid geometry
if ab=25 . a(5,x)and b(2,5) . find x.
case 2:when center is not known proof
Ask question draw a line parallel to given line xy at a distance of 5cm from it #Minimum 100 words accepted#
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hi,i want know about Assignment work..
How many 4 digit number lass than 6000 can be made with the digits 7,6,4 and 2 if digits are not repeated?
1) find the maxima and minima of f(x,y,z) = 2x + y -3z subject to the constraint 2x^2+y^2+2z^2=1 2)compute the work done by the force field F(x,y,z) = x^2I + y j +y k in moving
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