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Matmat is playing a card game together with his friends as their activity during their leisure time. He was stuck in a win or lose situation. When he draws a card from the standard deck of cards, what is the probability of getting an odd number that is less than 10, but greater than 3 or a black?

Solución

Solución

\frac{1}{2}

Pasos de solución

Find the probability of getting odd 10 3 :

0

Find the probability of a black:

\frac{1}{2}

Since the events are disjoint, Use the formula

P (X_{1} \lor X_{2} \lor \dots \lor X_{k}) = P (X_{1}) + P (X_{2}) + \dots + P (X_{k})

= 0 + \frac{1}{2}

Aplicar la propiedad:

a + 0 = a

= \frac{1}{2}

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