Question
Asked Nov 30, 2019
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A card is picked at random from a standard deck of 52 cards. Find the odds it is a spade.

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Expert Answer

Step 1

Given information’s are

In a pack there are 52 playing cards

13 diamond cards

13 spade cards

13 heart cards

13 club cards

Formula for calculating probability is

no.of favourablecases
P(E)=
total no.of cases
n(E)
n(S)
P(E)
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no.of favourablecases P(E)= total no.of cases n(E) n(S) P(E)

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Step 2

Here we want to find odds it is a spade.

Probability for getting spade is 0.25.

probability of getting spade = n0.0f spadecards inadeck
total no of cards inadeck
13
52
probability of getting spade = 0.25
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probability of getting spade = n0.0f spadecards inadeck total no of cards inadeck 13 52 probability of getting spade = 0.25

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Step 3

Probability of getting no...

probability of getting not a spade 1- probability of getting spade
4
probability of getting not a spade 0.755
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probability of getting not a spade 1- probability of getting spade 4 probability of getting not a spade 0.755

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Probability

Basic Probability

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