The probability that a card drawn form a pack of 52 cards will be a diamond or a queen is:

1) 3/13
2) 5/13
3) 4/13
4) 6/13

• total cards =52
  diamonds or queens card =13
  more there is 3 queen card so, 13+3=16
  then, 16/52=4/13
• 8 years agoHelpfull: Yes(25) No(2)
• p(aUb) = 13/52+4/52-1/52=4/13
• 7 years agoHelpfull: Yes(8) No(1)
• total cards=52
  1 card selected -> total =52C1
  total 13 diamonds -> 13c1
  4 are queens -> 4c1
  1 is diamond and queen ->1
  13/52+4/52-1/52=4/13
• 7 years agoHelpfull: Yes(3) No(0)
• diamond 13 included one queen so 3 queen left
  so total cards 16
  so 16/52
  equal to 4/13
• 7 years agoHelpfull: Yes(2) No(0)
• (13C1/52C1)+(4C1/52C1)-(1C1/52C1)=4/13
• 7 years agoHelpfull: Yes(2) No(0)
• 1: 3/13 is answer
• 7 years agoHelpfull: Yes(0) No(8)
• 13/52 + 4/52 -1/52 =4/13
• 7 years agoHelpfull: Yes(0) No(0)
• =13c1+3c1/52c1
  =4/13
  expln:
  there will be 13 cards in each type(diamond,hearts,clover and spade)
  here they have given, the diamond card has to be drawn, so we are selecting 1 card out of 13 cards.(i.e) 13C1
  and there will be a total of four queens in 52 cards(1 in all the type). so if we are selecting 1 card from those 4, then the probability will be 4c1. but there are chances like, we can select the queen from diamond itself. therefore it will be 3c1
  and since they hav given or as a connector , we should add both the possibilities.
  P(E)=n(E)/n(s). here the sample space is 52 cards and we are drawing out 1 card from it so it will be 52c1.
• 7 years agoHelpfull: Yes(0) No(0)
• p(d)=13/52
  p(q)= 4/52
  p(dnq)=2/52
  p(d or q)=13/52+4/52-2/52=5/13
  this is a right answer
• 7 years agoHelpfull: Yes(0) No(1)
• (13C1/52C1)+(4C1/52C1)-(1C1/52C1)=3/13
• 7 years agoHelpfull: Yes(0) No(2)
• 13(daimond cards) + 4(queen card) - 1( queen of daimond) = 16
  16/52=
  4/13
• 7 years agoHelpfull: Yes(0) No(0)
• 52 cards we are selecting one = 52c1
  diamond 13 cards =13c1
  queen 3 cards(one goes in diamond set)=3c1
  (13c1 + 3c1)/(52c1) =13+3/52=16/52=4/13
  ANS : 4/13
• 7 years agoHelpfull: Yes(0) No(0)
• total no of cases 52 and event is 13+3 so ans is 4/13
• 7 years agoHelpfull: Yes(0) No(0)
• total cards=52
  diamonds=red in color including diamond queen=13
  and
  other remaining 3 queens
  then 13+3=16
  16/52=4/13;
  
• 7 years agoHelpfull: Yes(0) No(0)
• Opt 3
  16/52=4/13
• 5 years agoHelpfull: Yes(0) No(0)