Respuesta :

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[tex]P(x \leqslant 3) = P(1) + P(2) + P(3) \\ [/tex]

[tex]P(x \leqslant 3) = 0.25 + 0.32 + 0.17 \\ [/tex]

[tex]P(x \leqslant 3) = 0.74[/tex]

Thus the correct answer is

the last option .

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