The Speed Vehicles Travelled on a Local Road Was Recorded

question 96

Multiple Choice

The speed vehicles travelled on a local road was recorded for one month.The speeds ranged from 52 km/h to 67 km/h with a mean speed of 56 km/h and a standard deviation of 7 km/h.The quartiles and median speeds were 55 km/h,64 km/h,and 53 km/h.Suppose during the month,one driver was clocked at 25 km/h. Which of the summary statistics might not change if that data value was added to the distribution?

• A)Q1,Q3
• B)Median,range
• C)Median,IQR
• D)Mean,IQR
• E)Range,SD

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Definitions:

Absolute Refractory Period

A period immediately following an action potential during which a neuron is incapable of generating another action potential, no matter the stimulus strength.

Stimulation

The act of applying a stimulus to generate a response in an organ or tissue.

Plasma Membrane

A semi-permeable membrane found in cells that separates the interior of the cell from its external environment and regulates the movement of substances in and out of the cell.

Depolarization

The reduction of a cell's membrane potential, making it more positive, and initiating action potentials.