Solve the Problem. -Scores on a Test Are Approximately Normally Distributed with a Distributed

question 190

Multiple Choice

Solve the problem.
-Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students, B's to the next 25%, C's to the next
40%, D's to the next 16%, and F's to the bottom 9%. What is the bottom cutoff for a D grade? Round
Your answer to the nearest whole number.

• A)65
• B)58
• C)62
• D)56

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Definitions:

LRS

Lactated Ringer's Solution, an isotonic fluid commonly used for intravenous hydration and electrolyte replenishment.

NaCl

Sodium chloride, commonly known as table salt, but in medical settings, it refers to a saline solution used for IV fluids.

IV Flow Rates

The speed at which intravenous fluid is administered to a patient, measured in milliliters per hour (mL/hr) or drops per minute (gtt/min), crucial for accurate and safe IV therapy.

DA Equations

Formulas utilized in the study of dopamine system to predict or analyze the dynamics of dopamine neurotransmitter interactions and response.