How can I make that using MATLAB

Answer 1

[Walter Roberson]

Probability for discrete events is number of elements (events) that a condition holds for, times the probability of the event, divided by total weight. Total weight of that matrix is 1.

For example, the entire first row is associated with X = 1, and 1 <= 1 1/2, so take the weights of the first row, 1/12 + 1/16 + 1/12 = 1/6 . None of the entries in the second or third row matches, so nothing is added for those rows. Total probability is (1/6) divided by (1) where the (1) is the total weight for the matrix.

[Fayez Aljuaid]

Thank you , I know, but how can i do it by code ?

[Walter Roberson]

Hint:

[A, B] = ndgrid(4:7, 3:8)

A = 4×6

4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7

B = 4×6

3 4 5 6 7 8 3 4 5 6 7 8 3 4 5 6 7 8 3 4 5 6 7 8

mask = A == 4 & B >= 6

mask = 4×6 logical array
   0   0   0   1   1   1
   0   0   0   0   0   0
   0   0   0   0   0   0
   0   0   0   0   0   0