निम्न प्रायिकता बंटन से यादृच्छिक चर का माध्य प्रसरण ज्ञात कीजिए -
`{:(X,-2,-1,0,1,2,3),("P(X)",0.10,0.20,0.30,0.20,0.15,0.05):}`

A random variable X has the following distribution {:(x,:-3,-2,-1,0,1,2,3),(P(X=x):,0.05,0.1,0.3,0,0.3,0.15,0.1):} The mean and variance are

A= [(0,-2,1),(2,0,-4),(-1,0,0)] then A is

A random variable X has the following probability distribution : {:(X:,1,2,3,4,5,6,7,8),(P(X):,0.15,0.23,0.12,0.10,0.20,0.08,0.07,0.08):} for the events E=[X is a prime number] F={X lt 4}, the probability P(EUF) is a)0.87 b)0.77 c)0.35 d)0.5

If PxxQ={(2,-1),(3,0),(2,1),(3,1),(2,0),(3,-1)} , find P and Q.

Solve |(x-1,0,0),(2x,x+3,0),(5x-1,3x+1,x-2)|=0

If A=[(2,0),(3,0)],B=[(0,0),(1,2)],C=[(0,0),(3,4)] then

The points (0,0),(-2,0),(3,0)

If A=[(1,2,3),(2,0,-1),(0,2,-2)],B=[(1,0,0),(0,-1,0),(-1,0,2)] then 4A-3B=