Does this matrix have an inverse?why or why not ?

C. No, because it's determinant is zero

Step-by-step explanation:

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0

sorry can't

step-by-step explanation:

i googled though and something came up but it was in science langueage not common english sooo