Find a Value of the Standard Normal Random Variable $z$ , Called

question 5

Multiple Choice

Find a value of the standard normal random variable $z$ , called $z _ { 0 }$ , such that $\mathrm { P } \left( z \geq z _ { 0 } \right) = 0.70$ .

• A) \(- .47\)
• B) \(- .98\)
• C) \(- .81\)
• D) \(- .53\)

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Definitions:

Hypertonic

Describes a solution that has a higher concentration of solutes compared to another solution, causing cells in contact with it to lose water through osmosis.

Hypotonic

describes a solution that has a lower concentration of solutes compared to another solution, leading to water moving into the cell.

Isotonic

A solution that has the same solute concentration as another solution, preventing the movement of water across a semipermeable membrane.

Osmosis

The spontaneous movement of solvent molecules through a semi-permeable membrane from a region of lower solute concentration to one of higher solute concentration.