Given that z is a standard normal random variable, what is the probability that -2.51 
z 
-1.53?
Definitions:
Magnesium Atom
The atomic form of magnesium, a light, silvery-white, moderately hard metallic element that is an essential nutrient for living cells.
Metallic Salt
Chemical compounds consisting of metal cations and non-metal anions, often soluble in water and can conduct electricity when molten or dissolved.
Electroplating Operation
A process that uses electrical current to reduce dissolved metal cations so that they form a metal coating on an electrode.
Negative Terminal
The terminal of an electrical device (such as a battery) through which current flows out, typically regarded as the source of electrons.
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