Respuesta :

marionsang109

If P(Q or R) = P( Q) + P(R) then,

0.18 + 0.2 = 0.38

So, P(Q or R) = 0.38

C, 0.380

Answer:

C

Step-by-step explanation:

Givens

[tex]P(Q)=0.18\\P(R)=0.2[/tex]

The probability function [tex]P(Q \ or \ R)[/tex] indicates the sum of individual probabilities.

[tex]P(Q \or \ R)=P(Q})+P(R)=0.18+0.2=0.38[/tex]

Therefore, the right answer is C.

Remember, "or" indicates sum, "and" indicates product.

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