A company’s cash position, measured in millions of dollars, and denoted by (Xt) follows an arithmetic Brownian motion with dynamics dXₜ = αdt + σdWt along with the drift rate of α = 1.2 per annum and variance rate of σ2 = 1.92 per annum. The initial cash position is X₀ = 2.
(a) What are the probability distributions of the cash position at the end of 1 month, 1 year and 3 years?
(b) What are the probabilities of a negative cash position at the end of 1 month, 1 year and 3 years?

i got 86 for this

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answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

what level of math? also i don't need to be paid if i can you.