Probability of matching numbers

  • Context: MHB 
  • Thread starter Thread starter Rmbha
  • Start date Start date
  • Tags Tags
    Numbers Probability
Click For Summary
SUMMARY

The discussion centers on calculating the probability of two 5-digit numbers sharing 4 digits while having 1 unique digit. The numbers in question are 12,547 and 11,425, which share the digits 1, 2, 4, and 5. The key inquiry is whether the probability pertains to the arrangement of these digits or simply their matching. Clarification is needed on whether the focus is on the specific digits or the general concept of matching digits.

PREREQUISITES
  • Understanding of basic probability concepts
  • Familiarity with combinatorial mathematics
  • Knowledge of digit arrangement and permutations
  • Experience with numerical analysis
NEXT STEPS
  • Research combinatorial probability calculations
  • Learn about permutations and combinations in mathematics
  • Explore the concept of matching digits in number theory
  • Study examples of probability in real-world scenarios
USEFUL FOR

Mathematicians, statisticians, educators, and anyone interested in probability theory and combinatorial analysis.

Rmbha
Messages
14
Reaction score
0
What is the probability of having these 2 sets of numbers with 4 digits the same and 1 unique digit? Thank you.

12,547
11,425
 
Physics news on Phys.org
Rmbha said:
What is the probability of having these 2 sets of numbers with 4 digits the same and 1 unique digit? Thank you.

12,547
11,425

Hi Rmbha!

Welcome to MHB. :)

The two numbers have the digits 1,2,4, and 5 as the same. So is the question what is probability of a 5 digit number containing 1,2,4,5 and two other digits with order not mattering? Or is it having 4/5 digits matching in general?
 

Similar threads

Undergrad What is the probability that the product of the digits is odd?
  • · Replies 13 ·
Replies
13
Views
2K
Undergrad Significant figures for inherently bound values
  • · Replies 6 ·
Replies
6
Views
581
High School Two interesting number theory tricks
  • · Replies 3 ·
Replies
3
Views
950
Undergrad Countability of binary Strings
  • · Replies 18 ·
Replies
18
Views
3K
MHB Probability: Find the number of ways to form 4-digit numbers >3000
  • · Replies 4 ·
Replies
4
Views
2K
High School Squaring finite decimals of 2/3 and 1/3 - growing patterns
  • · Replies 1 ·
Replies
1
Views
1K
High School Probability a randomly chosen natural number, which is not smaller than 𝑥, is greater than x?
  • · Replies 15 ·
Replies
15
Views
2K
Undergrad How many guesses would it require to correctly guess a 10 digit number?
  • · Replies 5 ·
Replies
5
Views
4K
MHB What is the Probability of Certain Digits Not Appearing in a Random Selection?
  • · Replies 1 ·
Replies
1
Views
2K
MHB Solving Permutations Question with Restrictions
  • · Replies 3 ·
Replies
3
Views
1K