Question

What is the probability to getting 11? ​

Answer 1

Step-by-step explanation:

99 combinations

2! See for 11 numbers there can be 9 ways for each number for 1st nine places since 0 can't be the fist number and next two are repeated from 10 numbers hence 10!/2! So 99 combinations have 10!/2! Permutations hence total ways are 99*10!/2!

Answer 2

Answer:

First number 11, (4,7), (5,6),(6,5) and (7,4) give you 11. probability of each is 1/36. Thus, probability of getting 11 is 1/9.