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Sagot :
Answer:
a standard crd deck has 52 cars so
the probability of getting red is 0.5 since 2 of the 4 faces are red. The probability for getting a king is 1/13 since there are 13 different card values.
Step-by-step explanation:
Note:
52 cards in a deck
26 red cards in a deck
4 kings in a deck
Let’s set:
P(A) = drawing a red card
P(B) = drawing a king card
P(A or B) = drawing a red or a king card
P(A and B) drawing a red AND a king card
Formula:
P(A or B) = P(A) + P(B) - (A and B)
Solve:
P(A and B) = 26/52 • 4/52 = 1/26
P(A or B) = 26/52 + 4/52 - 1/26 = 7/13
Your answer is 7/13.
(I hope I’m correct)
52 cards in a deck
26 red cards in a deck
4 kings in a deck
Let’s set:
P(A) = drawing a red card
P(B) = drawing a king card
P(A or B) = drawing a red or a king card
P(A and B) drawing a red AND a king card
Formula:
P(A or B) = P(A) + P(B) - (A and B)
Solve:
P(A and B) = 26/52 • 4/52 = 1/26
P(A or B) = 26/52 + 4/52 - 1/26 = 7/13
Your answer is 7/13.
(I hope I’m correct)
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