A Sample of University Students Has an Average GPA of 2.78

question 31

Essay

A sample of university students has an average GPA of 2.78 with a standard deviation of 0.45.What is the probability that a randomly selected student will have a GPA
$\begin{array}{|l|l|l|l|l|}\hline & & \text { Z score } &\quad\quad & \text { Probability } \\\hline \text { a. } & \text { Lessthan } 3.40 \text { ? } & & & \\\hline \text { b. } & \text { Lessthan } 3.78 \text { ? } & & & \\\hline \text { c. } & \text { more than } 3.50 \text { ? } & & & \\\hline \text { d. } & \text { more than } 2.50 ? & & & \\\hline \text { e. } & \text { bbetween } 2.00 \text { and } 3.00 ? & & \\\hline \text { f. } & \text { between } 3.00 \text { and } 3.50 ? & & & \\\hline\end{array}$

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Definitions:

Corrosive

A substance or chemical that can destroy or irreversibly damage another substance by contact.

Toxic

Harmful, poisonous, or potentially dangerous to organisms, often resulting from chemicals, substances, or environmental factors.

Killing Power

The effectiveness or capability of a substance or action to cause death.

Formaldehyde

A colorless, strong-smelling gas used in various manufacturing processes and as a preservative in medical laboratories.