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3 years ago

A card is drawn from a well shuffled deck of 52 cards. Find the probability that the card is a red card or a 2.

1 answer:

3 0

$|\Omega|=52$

There are 26 red cards and four 2's. But two 2's are red, so $|A|=26+4-2=28$

$P(A)=\dfrac{28}{52}=\dfrac{7}{13}\approx54\%$

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Step-by-step explanation:

we are given half-life of PO-210 and the initial mass

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2 years ago

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