(I About 95

question 99

Multiple Choice

(i. About 95.5% percent of the area under the normal curve is within plus two and minus two
Standard deviations of the mean.
(ii. The normal distribution is a continuous probability distribution.
(iii) In a standard normal distribution, µ = 0 and σ = 1.

• A) (i), (ii), and (iii) are all correct statements.
• B) (i) is a correct statement but not (ii) or (iii).
• C) (i) and (iii) are correct statements but not (ii).
• D) (i) and (ii) are correct statements but not (iii).
• E) (i), (ii), and (iii) are all false statements.

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Definitions:

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The highest level of permission granted to a user, allowing full control over software and hardware settings.

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Instructions or inputs typed into the terminal in Linux operating systems to perform specific operations, control files, or configure system settings.

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Uninterruptible Power Supply, a backup power device that provides immediate power when the main power source fails, ensuring continuous operation of connected equipment.

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