When a Distribution Is Positively Skewed

question 33

Multiple Choice

When a distribution is positively skewed,

• A) standard deviation overestimates risk.
• B) standard deviation correctly estimates risk.
• C) standard deviation underestimates risk.
• D) the tails are fatter than in a normal distribution.

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Definitions:

Scan Time

The time it takes for a programmable logic controller (PLC) to read inputs, execute its program, and update outputs.

Rungs

In the context of ladder logic programming for PLCs, Rungs represent individual instructions or sets of instructions executed sequentially, structured like the rungs of a ladder.

Jump-To-Label Instruction

An instruction used in programming to immediately transfer execution to a specified point in the code.

Jumped Rungs

Segments of logic in a PLC program that are skipped or bypassed during execution due to conditional instructions.