I the Mean of a Normal Distribution Is Represented By \sigma

question 75

Multiple Choice

i. The mean of a normal distribution is represented by $\sigma$ . ii. Some normal probability distributions have equal arithmetic means, but their standard deviations may be different.

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

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Definitions:

Aerosol Cans

Containers that use pressurized gas to dispense substances in a fine spray.

N-hexane

A straight-chain alkane with the formula C6H14, used as a non-polar solvent in the extraction of edible oils from seeds and vegetables.

Densities

The mass of a substance per unit volume, indicating how compact the substance is.

Boiling Point

The temperature at which a liquid's vapor pressure equals the external pressure surrounding the liquid, causing it to turn into vapor.