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Kitchen Cutlery Men's Gifts Manicure Sets Razors Shaving Liquor Flasks Groomsmen Gifts Swords Sports Knives Scissors Rubis Gingher Knife Sharpening from Excalibur Cutlery and Gifts Welcome to Excalibur Cutlery & Gifts Thank you for visiting Excalibur Cutlery and Gifts. We invite you to browse our incredible selection for a specific cutlery item or a special gift. Excalibur offers secure online ordering, guaranteed return policy, gift wrapping and prompt, FREE SHIPPING . We are also always happy to assist you in one of our retail locations or help you find the perfect purchase by phone. Choose from one of the categories below or at the top left and welcome again to our fascinating world of fine cutlery and unique gifts. Kitchen Cutlery Sports and Pocket Knives Men's Gifts Groomsmen Gifts Swords and Medieval Razors and Shaving Pocket Flasks, Hip Flasks, Liquor Flasks Manicure Sets Manicure Instruments Rubis Manicure Instruments Gingher Scissors & Shears Scissors and Shears Gentlemen's Knives Multi-tools Harley-Davidson Wedding Gifts Sharpening Equipment Store Locations Store Locations Multi-tools Razors & Shaving Manicure Instruments Wedding Gifts Sharpening Equip. Kitchen Cutlery Gentlemen's Knives Flasks Scissors & Shears Harley-Davidson Gifts Rubis Gingher Sports-Pocket Knives Swords & Medieval Manicure Sets Groomsmen's Gifts Men's Gifts NICA Exclusives © 2004 Excalibur All rights reserved. All other trademarks belong to their respective owners. If you have any concerns or problems with our site, please contact the Webmaster, AdSense Consulting.

Birthday Present

Math Forum: Ask Dr. Math FAQ: The Birthday Problem -- Ask Dr. Math: FAQ The Birthday Problem Dr. Math FAQ || Classic Problems || Formulas || Search Dr. Math || Dr. Math Home Suppose you flip a coin and bet that it will come up tails. Since you are equally likely to get heads or tails, the probability of tails is 50%. This means that if you try this bet often, you should win about half the time. What if somebody offered to bet that at least two people in your math class had the same birthday? Would you take the bet? This question is more complicated than flipping a coin, because the chance of finding two people with the same birthday depends on the number of people you ask. If there were only one other person in your math class, you might be surprised to find out that she had the same birthday as you. If there were a pair of people with the same birthday in a class of 366 people, would you still be surprised? How large must a class be to make the probability of finding two people with the same birthday at least 50%? Let's forget about leap year when we solve this problem (no February 29 birthdays!) This way, we can assume that a year is always 365 days long. We'll start by figuring out the probability that two people have the same birthday. The first person can have any birthday. That gives him 365 possible birthdays out of 365 days, so the probability of the first person having the "right" birthday is 365/365, or 100%. The chance that the second person has the same birthday is 1/365. To find the probability that both people have this birthday, we have to multiply their separate probabilities. (365/365) * (1/365) = 1/365, or about 0.27%. Now, what about three people ? The chance of the first and second person sharing a birthday is still 1/365. The first and third person might share a birthday instead. The probability of that is 1/365 as well. But what if the second and third person shared a birthday? And what if all three of them had the same birthday? Things are getting complicated fast. Four or five people would be even messier. Is there a simpler way? To solve the birthday problem, we need to use one of the basic rules of probability: the sum of the probability that an event will happen and the probability that the event won't happen is always 1. (In other words, the chance that anything might or might nothappen is always 100%.) If we can work out the probability that no two people will have the same birthday, we can use this rule to find the probability that two people will share a birthday: P(event happens) + P(event doesn't happen) = 1 P(two people share birthday) + P(no two people share birthday) = 1 P(two people share birthday) = 1 - P(no two people share birthday). So, what is the probability that no two people will share a birthday? Again, the first person can have any birthday. The second person's birthday has to be different. There are 364 different days to choose from, so the chance that two people have different birthdays is 364/365. That leaves 363 birthdays out of 365 open for the third person. To find the probability that both the second person and the third person will have different birthdays, we have to multiply: (365/365) * (364/365) * (363/365) = 132 132/133 225, which is about 99.18%. If we want to know the probability that four people will all have different birthdays, we multiply again: (364/365) * (363/365) * (362/365) = 47 831 784/ 48 627 125, or about 98.36%. We can keep on going the same way as long as we want. A formula for the probability that n people have different birthdays is ((365-1)/365) * ((365-2)/365) * ((365-3)/365) * . . . * ((365-n+1)/365). If you know permutation notation, you can write this formula as (365_P_n)/(365^n). That's the same as 365! / ((365-n)! * 365^n). We've made some progress, but we still haven't answered the original question: how large must a class be to make the probability of finding two people with the same birthday at least 50%? We know that the probability of finding at least two people with the same birthday is 1 minus the probability that everybody has a different birthday, and we know how to find the probability that everybody has a different birthday for any number of people. The easiest way to find the right class size is to use a calculator to try different numbers in the formula. It turns out that the smallest class where the chance of finding two people with the same birthday is more than 50% is... a class of 23 people . (The probability is about 50.73%.) From the Dr. Math archives: Probability Theory: Coincidental Birthday Probability of the Same Birthday within a Group Birthday Probabilities Three Share a Birthday The Birthday Problem; Queuing at a Bank Birthday Probability, Class of 25 One Person of Seven Born on Monday Odds of Left-Handedness in a Group From the Web: The Birthday Problem: A short lesson in probability , George Reese A Java applet that you can use to test different class sizes (it works better with small classes) and graphs of the probability for different numbers of people. The Law of Small Errors , Keith Devlin The birthday problem, and related questions - what's the probability that someone will have your birthday? Birthday Surprises, Ivars Peterson Birthday Problem, Eric Weisstein's World of Mathematics Coincidence, Alexander Bogomolny How to Read Mathematics, Shai Simonson and Fernando Gouveau This article uses an explanation of the birthday problem as an example. An Introduction to Mathematica and the "Birthday Problem," Louie Beuschlein For a general review of probability: Probability, Dr. Math FAQ Probability in the Real World, Dr. Math FAQ - Ursula Whitcher, for the Math Forum Submit your ownquestion to Dr. Math [ Privacy Policy ] [ Terms of Use ] Math Forum Home || Math Library || Quick Reference || Math Forum Search Ask Dr. Math ® © 1994-2005 The Math Forum http://mathforum.org/dr.math/

Anniversary Gift Ideas Anniversary

50th Wedding Anniversary Gift Ideas - FindGift.com Personalize FindGift.com! -- Login | Sign Up | List of Services Gift Ideas Gift Registry Gift Shops Gift Bookmarks Home | Help keyword search Gift Giving Made Easy! A free service dedicated to helping you find creative gift ideas! Home Occasions Anniversary 50th Anniversary Refine Search for Anniversary Gift Ideas Anniversary for Him for Her for a Couple 1st Anniversary 5th Anniversary 10th Anniversary 25th Anniversary 40th Anniversary 50th Anniversary Keepsakes Poems Any Price $0 - $10 $11 - $25 $26 - $50 $51 - $100 $101 - $200 $200+ Related Links Gift ideas via the traditional & modern anniversary table Need help remembering their anniversary? Sign up for our FREE email reminder service! Use our Gift Wizard to customize your gift search Use our Gift Finder to find gift ideas customized to the likes/dislikes of the recipient. Stroll down Memory Lane A place where great moments and memories live forever. Very unique www.yourmemorylane.com Personalized Romance Book Romantic and humorous anniversary gift. Personalized romance novels. www.bookbyyou.com Viewing 1 - 10 of 146 gift ideas found When We Were Married Golden Anniversary Edition from When We Were Married ($45.00) Celebrate 50-years with an elegantly designed, custom printed keepsake book about the year they married. A memorable gift they will cherish forever. Express Delivery Available. 100% Satisfaction Guaranteed! Questions? Contact When We Were Married . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] 50th Wedding Anniversary Toast / Poem from Wellhaven Gifts for Seniors ($14.99) Framed in an antique design, the 50th anniversary toast reads: "May your Golden Aniversary bring you fond memories... " The 7 x 7" print has an easel stand, a hinged wall hanging tab and space on the back for a gift note. Same day shipping for orders placed by 3:00pm ET. Expedited, Express Shipping and Gift-Wrapping with gift card available Questions? Contact Wellhaven Gifts for Seniors . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] "Reflections" Anniversary Frame from Wedding-Presents.com ($49.95) Reflect with joy on your first year together, or the past 50 years together as husband and wife with our new and exclusive "Reflections" Anniversary Frame. Choose ANY Year. *Money Saving Coupon* Save 15% off your order! Use code 'findgift' during checkout. Hurry, offer expires September 30th! Questions? Contact Wedding-Presents.com . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] 1955 Birthday or Anniversary Book from Birthdayandanniversarygifts.com ($29.95) 1955 Book. Original black & white photos, ads from major magazines, prices, salary information, trivia, headlines, sports, celebrities, songs & movies for 1955. Red, Hardcover, 172 pp. Can personalize with gold seal on cover. Fast shipping! Order by Noon M-Fri Eastern time to have order go out the same day! Questions? Contact Birthdayandanniversarygifts.com . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] The Original Family Birthstone Tree from BirthstoneTree.com ($100.00) The original family birthstone tree(1966) is a bronze engraving of your families history with birthstones set beside each name and birthdate. The perfect gift for parents and grandparents. Questions? Contact BirthstoneTree.com . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] Personalized Anniversary Poem from PoetryGift.com ($29.99) Unique anniversary gift that will always be remembered. Personalized with names, anniversary date and personal message and customized for any year anniversary. Free shipping. FREE SHIPPING available for any order. Special 10% discount by entering coupon code - poetrygift - on order form Questions? Contact PoetryGift.com . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] A Match Made in Heaven (R) Personalized Edition from Juhlin Glass Studio ($39.00) Original personalized wedding anniversary keepsake. The Bride & Groom are mounted on a 4"x6" beveled oval under a shooting star. Personalized with 2 names and date. 24K Gold plated or imitation silver plated. FindGift.com Shoppers get a 10% Discount if ordered by Sept 30th. Enter Code "FindGift" in Voucher Box on checkout Questions? Contact Juhlin Glass Studio . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] Framed Anniversary Print: What Happened When You Married from Birthdayandanniversarygifts.com ($32.95) Top news story of the month the couple married, headlines for the year, top movies and songs, prices for their wedding day, & headlines for previous milestone anniversaries. Framed. Fast shipping! Order by Noon M-Fri Eastern time to have order go out the same day! Questions? Contact Birthdayandanniversarygifts.com . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] 50th Wedding Anniversary Plate from WestPortStyle.com ($27.50) This lovely porcelain decorative plate features gold toned bells and accents. A wonderful way to remember your golden anniversary. Frosted Plastic Stand Included. Measures 7 1/2" diameter Weighs 13 1/8oz. No Sales Tax. Only $6.95 Ship Fee (unlimited items!) Questions? Contact WestPortStyle.com . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] 50th Wedding Anniversary Cotton Throw from Wellhaven Gifts for Seniors ($27.99) With "50th Anniversary" around the border, the message reads: "On your Golden Anniversary, no treasure is more precious than a love grown golden with time." Wrap it as a gift, or display it at the couple's anniversary party. Same day shipping for orders placed by 3:00pm ET. Expedited, Express Shipping and Gift-Wrapping with gift card available Questions? Contact Wellhaven Gifts for Seniors . Add to Gift Bookmarks Add to Registry [ More Gifts from this store ] [ People Who Liked This Gift Also Liked ] [ Report Error ] Page: 1 | 2 | 3 | 4 | 5 | viewing 1 - 10 of 146 gift ideas found Bosses Day Oct 16, 2005 24 Shopping Days Left Bosses Day Gift Ideas Sweetest Day Oct 15 Halloween Oct 31 More Holidays Seasonal Gifts Wedding Gift Ideas Anniversary Gift Ideas Autumn Theme See this month's Top 20 Gift Ideas Gift Helpers » Anniversary Gifts » Flower Meanings » Monthly Flowers » Monthly Birthstones » Signs of the Zodiac » Additional Resources FindGift.com Newsletter Sign up to receive seasonal and unique gift ideas via email. Email Address Merchant Login | Add Your Products to FindGift.com | Press Room | FAQs | Contact FindGift.com Conditions of Use | Privacy Policy | Site Map © 1997-2005, Registry Online, Inc. FindGift.com and its logo are trademarks of Registry Online, Inc.

Birthday Present

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