Answer:
0.4
Step-by-step explanation:
The number of ways to select 3 points out of 5 points:
N1 = 5C3 = (5 x 4 x 3)/(1 x 2 x3) = 10
The number of ways to select 3 points out of 4 points that are already collinear:
N2 = 4C3 = (4 x 3 x 2)/(1 x 2 x 3) = 4
=> The probability of selecting 3 points that are collinear:
P = N2/N1 = 4/10 = 0.4
Good day, Harry!
