Consider the Following to Answer the Question(s) Below

question 8

Multiple Choice

Consider the following to answer the question(s) below:
An airline has found that its flights between Toronto and Vancouver can take anywhere from 4.5 to 7.5 hours, with any time between this range being equally likely.
-What is the standard deviation?

• A) 0.75 hours
• B) 0.87 hours
• C) 6 hours
• D) 0.33 hours
• E) 0.5 hours

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Definitions:

Enolate

An intermediate formed from an aldehyde or ketone in the presence of a strong base, characterized by the presence of a negatively charged oxygen atom adjacent to a carbon-carbon double bond.

1-pentene

A hydrocarbon with the formula C5H10, characterized by having a double bond between two of its carbon atoms, making it an alkene.

Bromine

A halogen element with the symbol Br and atomic number 35, used in various chemical syntheses and as a flame retardant.

Propanal

An aldehyde with the chemical formula C3H6O, characterized by a short carbon chain with a terminal carbonyl group.