Black Red
Black Red
What is the probability of having a black 5 then a red 4?
Keith makes up a deck of 40 cards. The cards are numbered from 1 to 10 and each number comes in 4 colors (orange, red, black, and blue). He selects cards from the deck. Once a card is selected it is NOT replaced.
Tthe chance of having a black 5 on the first pick is 1/40. The odds of the red 4 being next are 1/39 (there are only 39 cards in the deck after the black 5 is removed.)
The odds of removing them in exactly that sequence is:
1/40 * 1/39 = 1/1560
|
|
NEW BACKPACK – RED ORANGE BLACK – BIKERS Camping Hiking $39.99 |
|
|
Black/Red Budwiser Nascar #8 Racing Cap Outdoors $9.99 |
|
|
NorthFace Backpack, Hot Shot, Red, Gray & Black, Good Condition! $36.00 |
|
|
Men Bicycle Black Red Multi-pocket Zip Daypack Backpack $50.03 |
|
|
****NEW**** OPSREY PACKS HORNET 24 SMALL/MEDIUM CRIMSON (RED/BLACK/GREY) $79.99 |
|
|
****NEW**** OPSREY PACKS HORNET 24 MEDIUM/LARGE CRIMSON (RED/BLACK/GREY) $79.99 |
|
|
Men Bicycle Black Red Multi-pocket Zip Daypack Backpack $50.01 |
|
|
CAMELBAK Rim Runner Hydration Backpack REI Red Black $25.32 |
|
|
NEW BACKPACK – RED ORANGE BLACK – BIKERS CAMPING HIKING $39.99 |
|
|
Coleman Max 65L Internal Frame Backpack Red Gray Black $21.00 |
|
|
ESPN black and red backpack- Great Condition $12.49 |
|
|
The North Face Crestone 60 Hiking Camping Backpack Red / Blue / Gray / Black $75.00 |
|
|
MOUNTAINSMITH Mountain Smith Dart REDURA Waist Pack RED / BLACK $4.99 |
|
|
Great Land backpack / Never Used / red gray black / 4 zippered compartments $10.00 |
|
|
Gregory Palisade 80 (ADULT LARGE) RED & Black Backpack INTERNAL Frame Pack $81.00 |
|
|
BLACK SHEEP ALPINE DAY AND HALF Backpack Hiking BAG NEW IN BOX RED BLACK $34.95 |
|
|
RED ROCK OUTDOOR GEAR Red and Black Assault Pack 18″ X 11″ X 11″ EACH E9599 $49.99 |
|
|
Used REI Talus 35 Internal Frame Hiking Camping Day Backpack Red Black Large Nr $15.00 |
|
|
Sport Camping Hiking Bag 55L (Black/Red/Silver) $12.99 |
|
|
Camelbak The Capo 100 Oz Hydration Pack (Red/Black) $69.99 |
|
|
Texsport Wildwater Dry Tote Bag Red/Black 11008 $47.99 |
|
|
NWT Black Diamond Speed** 40L Lava/Red SZ M Backpack $159.95 |
|
|
NEW RED BLACK BACKPACK COOLER Hike Camp PICNIC HUNT FISH OUTDOOR ADVENTURE TRIP $32.95 |
|
|
Men Bicycle Black Red Multi-pocket Zip Daypack Backpack $52.06 |
|
|
Red Rock Outdoor Gear Black Diplomat Pack 20″ x 20″ x 12″ each E7751 $84.99 |
|
|
BRAND BLACK MOUNTAIN Mountain Camping Hiking Backpack 25L RED/BLACK $29.00 |
|
|
Black Mountain Mens and Womens Waterproof waist pack hip sack zipped RED $12.00 |
|
|
Men Bicycle Black Red Multi-pocket Zip Daypack Backpack $53.56 |
|
|
Men Bicycle Black Red Multi-pocket Zip Daypack Backpack $53.60 |
|
|
Texsport Bartlett Daypack Backpack Black/Red 06502 $38.99 |
|
|
Black Diamond Fuse Lumbar Pack Red Clay Daypack BD681009RCLYALL1 $42.69 |
|
|
OUTDOOR RESEARCH PERUVIAN FLEECE HAT RETRO RED/BLK MED $35.17 |
|
|
OUTDOOR RESEARCH PERUVIAN FLEECE HAT RETRO RED/BLK SML $35.17 |
|
|
OUTDOOR RESEARCH PERUVIAN FLEECE HAT RETRO RED/BLK LRG $35.17 |
|
|
NEW Fox Racing Low Pro Hydration Pack Cycling MTB Race Backpack – Red / Black $54.95 |
|
|
NEW Fox Racing Oasis Hydration Pack Cycling MTB Race Backpack – Red Black $79.45 |
|
|
Adidas YATES SLING Backpack Bag X-LARGE RED BLACK ~NEW $74.95 |
|
|
Men Bicycle Black Red Multi-pocket Zip Daypack Backpack $53.67 |
|
|
ToppersT Sport Backpack Red / Black $84.00 |
|
|
Men Bicycle Black Red Multi-pocket Zip Daypack Backpack $53.73 |
|
|
Cycling Back Metal Frame Mesh Fabric Backpack Black Red $52.65 |
|
|
Hurley Plaid Black/Red Backpack $38.99 |
You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.
