Question

Asked Oct 28, 2019

36 views

Step 1

From given information,

Let the sample be –

Sample = {0,1,2,3,4,5,6,7,8,9}

Five digits code can be found as:

Here, repetition of digits is allowed.

Step 2

The required number of ways-

Step 3

first place can-not be filled with zero for a five digits number, hence there are 9 ways to fill 1st place. For, 2nd place there are 10 digits ...

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