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wariber
7 days ago
10

Credit cards place a three digit security code on the back of cards. What is the probability that a code starts with the number

7?
Mathematics
1 answer:
tester [8.8K]7 days ago
4 0
The likelihood of a code commencing with the digit 7 is 1/10. There are a total of 10 digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. Moreover, the total number of possible codes formed using these digits is 1000, as there are 10 choices for the first, second, and third positions. This results in a total of 10×10×10=1000. If the first digit of the code is fixed as 7, we only need to choose digits for the second and third places. Thus, the total codes starting with the digit 7 equal 100, given that the first digit is set and we still have 10 options for both of the other digits (1×10×10=100). Therefore, the probability calculates as follows: Probability=100/1000=1/10.
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Answer:

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Step-by-step explanation:

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1 month ago
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16 days ago
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A)
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29 days ago
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