7
QuizMultiple Choice

Step Functions — Cumulative exam

Question 7 • VA-Mathematical Analysis

A security alarm requires a four-digit code. The code can use the digits 0–9 and the digits cannot be repeated.What is the approximate probability that the code only contains odd numbers?

Answer
A
0.0005
B
0.00099
C
0.012
D
0.02381
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A security alarm requires a four-digit code. The…