Question

say 5th sum it is very important for me that also now only ​

Answer 1

Answer:

a)no.of red kings =2

total no.of cards=52

probability=2/52

1/26

b)no.of black queen =2

total no.of cards=52

probability=2/52

1/26

Answer 2

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There are totally 52 cards in a deck

In that there are 26 cards are red in colour and another 26 cards are black in colour.

In red colour cards there are two types:-

(i) Heart ♡ - 13 cards

(ii) Diamond ◇ - 13 cards

In black colour cards also there are two types:-

(i) Spade ♤ - 13 cards

(ii) Clubs ♧ - 13 cards

∴ There are 4 types of cards in a deck.

In a deck there are 4 kings, 4 queens, 4 jacks, and 40 numbered cards from 1 to 10

In this king, queen, jack are known to be face cards.

In each type of card there will be 1 king, 1 queen, 1 jack and 10 numbered cards.

5.

a) Given

A deck of cards

To find

a) Red king

b) Black queen

Formula going to use:-

$Probability\: of\: an\: event = P(E) = \frac{No. \:of\:favourable \: outcome}{Total \: no . \: of \: outcomes}$

a) Favorable outcome = 26 red cards

Total no. of outcomes = 52 cards

$Probability \: of \: selecting \: a \: red \: card = \frac{26}{52}$

by cancelling we get,

$Probability \: of \: selecting \: a \: red \: card = \frac{1}{2}$

b) Favourable outcome = 1 spade queen + 1 clubs queen

= 2 black queen

Total no. of outcomes = 52

$Probability \: of \: selecting \: a \: black \: queen \: card = \frac{2}{52}$

by cancelling we get,

$Probability \: of \: selecting \: a \: black \: queen \: card = \frac{1}{26}$