To price this type of question, you need to ask yourself:
How many full possibilities room there? (52)
How countless possibilities fite the condition? (For example there room 13 Spades in a standard deck.)
Divide the answer indigenous 2. Through the answer indigenous 1. For this reason the probability of illustration a Spade is 13/52 which is the very same as 1/4.
You are watching: If one card is drawn from a standard deck of 52 playing cards what is the probability of
Find how plenty of of the cards out of 52 are in the deck then simplify the fraction
1: 1/4 (13 spades, 13/52) 2: 1/13 (4 7s, 4/52) 3: 1/2 (13 hears and 13 spades, 26/52) 4: 1/26 (2 black jacks in the deck, 2/52)
Title: One card is attracted from a traditional deck the 52 play cards. Find the probability of each of the adhering to events:
1. A spade is drawn.
2. A seven is drawn.
3. A spade or love is drawn.
4. A black color jack is drawn.
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The sample room is a deck of cards (52).
We have 4 events, so every answer is to express in a portion which is event/sample room (E/S).
Event = A spade is drawn
Each suit consists of 13 cards, so 13/52 (1/4).
Event = A 7 is drawn
There are only 4 sevens: 4 that diamonds, 4 the hearts, 4 that spades, and 4 the clubs. This is 4/52 (1/13).
Event = A spade or heart is drawn
We have two suits and also each suit contains 13 cards, therefore the occasion is 13 * 2 = 26. Our fraction is 26/52 (1/2).
Event = A black Jack is drawn.
There are just 2 Jacks: Jack of Spades and also Jack of Clubs. This is 2/52 (1/26).
The fractions can likewise be lessened too i beg your pardon I consisted of in parentheses.
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