Tap / click on image to see more RealViewsTM
Sale Price $5.11.  
Original Price $7.30 per card
You save 30%

The Birthday Paradox: A Mind-Boggling challenge Card

Qty:
Choose Your Format
Signature Matte
18 pt thickness / 120 lb weight Soft white, soft eggshell texture
+$1.20
+$1.20
-$0.35

Other designs from this category

About Folded Greeting Cards

Sold by

Size: Standard, 12.7 cm x 17.8 cm

Thank you, hello, or I love you, custom greeting cards are thoughtful gifts that are always the perfect way to express yourself.

  • Dimensions: 12.7 cm x 17.78 cm (portrait); 17.78 cm x 12.7 cm (landscape)
  • Full color CMYK print process
  • Double sided printing for no additional cost

Paper Type: Signature Matte

Our Signature Matte paper is a customer favorite—smooth to the touch with a soft eggshell texture that elevates any design. Its sturdy 18 pt weight and natural feel make it the ideal choice for timeless, sophisticated events.

  • Exclusively made for Zazzle
  • Made and Printed in the USA
  • FSC® Certified—sourced from responsibly managed forests that protect both people and planet

About This Design

The Birthday Paradox: A Mind-Boggling challenge  Card

The Birthday Paradox: A Mind-Boggling challenge Card

Inside this intriguing birthday card, you'll find an exhilarating challenge that will put your mind to the test! Inspired by the famous "Birthday Paradox," this card dares you to unravel the enigma of shared birthdays. As you open the card, you'll be greeted with a visually captivating design, adorned with colourful confetti and festive illustrations, setting the perfect celebratory mood. But don't be fooled by the joyful exterior; this card holds a perplexing puzzle that will leave you scratching your head. The challenge begins as you read the instructions, which invite you to ponder the probability of two people sharing the same birthday in a group. Armed with a pen and a curious mind, you'll dive into an exploration of mathematics, statistics, and probability. The card provides you with a series of thought-provoking questions, guiding you through the steps to calculate the likelihood of a shared birthday. As you navigate through the perplexing equations and formulas, you'll be forced to confront the counterintuitive nature of the Birthday Paradox. But fear not, for the card also offers hints and tips to help you along the way. It encourages you to think critically and employ your problem-solving skills, challenging you to find the solution and unlock the secret of this fascinating paradox. Whether you tackle this challenge alone or share it with friends and family, this birthday card promises an engaging and stimulating experience. It blends the joy of celebration with the thrill of intellectual pursuit, making it a remarkable gift for those who love a mental challenge. So, embrace the paradox, celebrate your birthday in a unique way, and embark on a journey to unravel the mysteries of probability with this captivating "Unraveling the Birthday Paradox" birthday card. Are you ready to take on the mathematical challenge and discover the surprising truth behind shared birthdays?

Customer Reviews

4.9 out of 5 stars rating16.9K Total Reviews
15935 total 5-star reviews695 total 4-star reviews119 total 3-star reviews59 total 2-star reviews113 total 1-star reviews
16,921 Reviews
Reviews for similar products
5 out of 5 stars rating
By Kay C.31 October 2020Verified Purchase
Folded Greeting Card, Size: Standard, 12.7 cm x 17.8 cm, Paper: Signature Matte, Envelopes: White
Zazzle Reviewer Program
This card was so lovely and my granddaughter opened the card and hugged it as it had a unicorn on the front and her name And I added a picture inside of us And when her mummy Asked her who it was from she said my nanny and grandad and hugged the card she can’t read yet but knew who it was from. ❤️. Excellent quality of printing colour
5 out of 5 stars rating
By A.26 September 2021Verified Purchase
Folded Greeting Card, Size: Big, 21.6 cm x 28 cm, Paper: Signature Matte, Envelopes: White
Zazzle Reviewer Program
We downloaded several photos which was simple and produced a very attractive personalised card for our 11yr old Granddaughter. I was concerned that the card would not arrive on time but Zazzle came up trumps and the card arrived on the day before her birthday - perfect! I didn't see the card as it went straight to our family in New Zealand. However they did send a photo and it looked excellent!
5 out of 5 stars rating
By J.15 May 2023Verified Purchase
Folded Greeting Card, Size: Standard, 12.7 cm x 17.8 cm, Paper: Signature Matte, Envelopes: White
Zazzle Reviewer Program
The birthday card was perfect. Granddaughter loved it. Arrived on time for birthday was just as described. Very pleased with it. The picture and the wording where great nice bright colours. Paper used was good. I felt like I was giving a good quality product

Tags

Folded Greeting Cards
birthdayparadoxcelebrationmathematicsstatisticsprobabilitypuzzleintellectualcuriosityenigma
All Products
birthdayparadoxcelebrationmathematicsstatisticsprobabilitypuzzleintellectualcuriosityenigma

Other Info

Product ID: 256853494054189950
Posted on 9/07/2023, 4:31 PM
Rating: G