Gce Model Questions Vol1 2018 Computer Studies Question 13

Practice objective / multiple choice question 13 from the 2018 Gce Model Questions Vol1 Computer Studies examination.

Gce Model Questions Vol1 2018 Computer Studies Objective / Multiple Choice Medium Difficulty
Question 13 GCE_MODEL_QUESTIONS_VOL1 • 2018 • COMPUTER_STUDIES • objective

A password generator creates an 8‑character password by selecting each character independently and uniformly from the 62‑character set consisting of 26 uppercase letters, 26 lowercase letters and 10 digits. What is the probability that a randomly generated password contains at least one uppercase letter, at least one lowercase letter and at least one digit? Express your answer as a fraction of the total number of possible passwords.

Answer Options

A. (62^8 - 36^8 - 52^8 + 10^8 + 2·26^8) / 62^8
B. (62^8 - 2·36^8 - 52^8 + 2·10^8 + 2·26^8) / 62^8
Correct Answer C. (62^8 - 2·36^8 - 52^8 + 10^8 + 2·26^8) / 62^8
D. (62^8 - 2·36^8 - 52^8 + 10^8) / 62^8
Correct Answer
C
Correct Option:
(62^8 - 2·36^8 - 52^8 + 10^8 + 2·26^8) / 62^8

About This Question

This is Gce Model Questions Vol1 2018 Computer Studies Question 13. It is one of the objective questions from the 2018 Gce Model Questions Vol1 Computer Studies examination.

Difficulty level: Medium .

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