Probability-Four digit number
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You are assigned a four-digit PIN by your bank. What is the probability that the four digits in your PIN will be distinct?
Please show how you achieve the answer.
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Solution Summary
The solution provides step by step method for the calculation of probability of four digits of a PIN being distinct. Formula for the calculation is also included.
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Permutations, Probability and Combination
You are assigned a four-digit PIN by your bank. What is the probability that the four digits in your PIN will be distinct?
Answer
A four-digit number can be formed by filling each of the places with digits 0 to 9. ...
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