The mean of a constant value “b” is_________________?
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Answer: B. b
Explanation
A constant value never changes across any observations within a statistical dataset. Summing identical constant values 'b' 'n' times and dividing by 'n' returns 'b'. The expected value operator applied to any deterministic constant always yields that constant. Constants are fixed numbers that do not vary like random variables in experiments. Expected value rules state that constants pull through expectation operators without modification. Arithmetic means balance data points around a central axis using summation and division.
Financial modelers treat fixed baseline costs as constants when projecting future business profitability. Physics equations utilize constant gravitational parameters when calculating predictable projectile motion trajectories. Software developers use constant variables to prevent accidental data corruption during runtime execution. Option A is incorrect because zero would only apply if the constant itself was zero. Option C is invalid since the correct mathematical solution is explicitly known. Option D represents a standard frequency formula irrelevant to evaluating single constants.
- Subject
- Mathematics
- Category
- Statistics
- Topic
- —
- Difficulty
- medium
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