On the map of a town, the library is located at (–8, 8), and the seafood market is located at (–8, 2). Mary walks from the libra
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Answer:
Step-by-step explanation:
Let us first find the number of possible credit card numbers that can be formed with the numbers 0 - 9.
We want to form a 16 digit number out of 10 digits, so, we have:
There are numbers that can be formed.
There are only 100 million valid numbers (). Let the number of valid numbers be n.
Therefore, the probability of picking a number that is valid is:
P(valid) = n / N