Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Probability HW question please help. best ans 10 points PLEASE HELP ME?

1.What is the probability that you will receive an ace of diamonds or a queen of clubs?

2.If you were to draw a card, replace it and shuffle then what would be the probability of drawing the same card again?

3.Face cards are king, queen or jack for each suit. What is the probability of drawing a face card or a diamond card?

4. Dice have 6 sides with 1-6 dots on each side. there are 36 possible outcomes with rolling of two dice. What is the probability that you could roll the sum of 7 with the pair of dice?

5. Mean = 50 and standard deviation =10 . find probability

P(X>65)

P (X<47)

P(40<X<60)

3 Answers

Relevance
  • 6 years ago
    Favorite Answer

    There are 52 cars in a deck.

    1. we are talking about 2 cards here so it'd be: 2/52 = 1/26

    2. it's one card so: 1/52

    3. we are talking 4 cards for each suit. so 4x4=16

    so it's: 16/52 (you should check if you can shorten that)

    4. find out how many possibilities have the sum of 7 (lets call that number n). then it's n/36

    5. I have no idea what the hell that **** is

  • Anonymous
    6 years ago

    1. 2/52

    2.1/52

    3. Face cards are king, queen or jack for each suit.

    What is the probability of drawing a face card or a diamond card?

    12 face cards and 13 diamonds

    but 3 cards are both face and diamond

    12+13-3=

    22/52

    4. Dice have 6 sides with 1-6 dots on each side.

    the dots are called "pips"

    6/36

    5. P(X>65) 0.0668

    calculator time

    http://davidmlane.com/hyperstat/z_table.html

    others are as easy

    Attachment image
  • ted s
    Lv 7
    6 years ago

    1/26 ; 1/52 ; 22/52 ; 6 / 36...{ (1,6);(2,5) ,(3,4) , (6,1) ; (5,2) , ( 4 , 3 ) }

Still have questions? Get your answers by asking now.