Let Z Be a Normal Random Variable with Mean 0

question 36

Multiple Choice

Let z be a normal random variable with mean 0 and standard deviation 1. The 90^th percentile of z is ___.

• A) 1.645
• B) -1.25
• C) 1.96
• D) 1.28
• E) -1.645

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Definitions:

Acid Catalyst

A substance that accelerates the rate of a chemical reaction by donating protons (H+ ions) but is not consumed in the reaction process.

Necessary Reagents

Specific substances or compounds required to initiate or carry out a given chemical reaction.

Racemic Mixture

A mixture of equal amounts of two enantiomers of a compound, which are mirror images of each other but not superimposable.

Acid Catalyzed

A reaction that is accelerated in the presence of an acid, often leading to a faster or more selective process.