Two Technicians Are Discussing Exhaust Gas Recirculation Diagnostics

question 40

Multiple Choice

Two technicians are discussing exhaust gas recirculation diagnostics. Technician A says that if any data are out of range or irrational when compared to other data, then the malfunction indicator lamp (MIL) will illuminate. Technician B says that several variables are monitored by the OBDII system of diesel EGR with the key off. Who is right?

• A)A only"
• B)B only"
• C)Both A and B
• D)Neither A nor B"

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Definitions:

Skewed Distributions

Describes asymmetrical distribution of values in a dataset, where the majority of data points are located on one side of the mean, leading to a tail in the opposite side.

Categorical Variables

Variables that represent types or categories, which are not numerical and express qualitative attributes.

Median

The middle value in a data set when the values are arranged in ascending or descending order, providing a measure of central tendency.

Measure Of Central Tendency

A measure of central tendency is a single value that attempts to describe a set of data by identifying the central position within that set, such as the mean, median, or mode.