2 years ago

Compute the probability of randomly selecting a three or club.

1 answer:

5 0

Find the total number of cards in a deck. Count all the # 3’s total cards/#3 cards
Count all the clubs total card/ clubs
Not sure if you are counting 3’s & clubs together. If you are, total cards/ both
So all you have to do is count & then divide to get the probability.

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The probability that it'll rain tomorrow in Ohio is 30%

VLD [36.1K]

It raining in Alaska and raining in Ohio are independent events. One does not control the other or affect the other in any way.

For two independent events (let's call them A and B), the Probability of A and B both occurring is given by P(A and B) = P(B) x P(B).

For this problem, let A = rain in Ohio and B= rain in Alaska.

P(A and B) = P(A) x P(B)
$\frac{12}{100} =(P(A))( \frac{3}{10} )
$
$( \frac{12}{100}) ( \frac{100}{30} )=P(A)$
$P(A)= \frac{12}{30}= \frac{2}{5}$