There is something wrong with this example from New Senior Mathematics Advanced on pages 561-562. Can you see what it is?

(Hint 1: there is nothing wrong with the calculation.)

(Hint 2: you can fix it by replacing -3(x-1)

(Hint 3: without changing the function find P(X ≤ 0.1) instead.)

(Hint 1: there is nothing wrong with the calculation.)

(Hint 2: you can fix it by replacing -3(x-1)

^{2}+2 with -6(x-0.5)^{2}+1.5 in which case the answer is 0.784 - but can you see why?)(Hint 3: without changing the function find P(X ≤ 0.1) instead.)

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