X ~ Uniform (a,b) = Uniform (2 , 12)
Where a = 2 , b = 12
P(x1 < X < x2) = (x2 - x1) / (b-a)
So,
P(4.30 < X < 8.70) = (8.70 - 4.30) / (12 - 2)
= 0.44
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