The Following Table Shows the Age Distribution of a Sample

question 65

Short Answer

The following table shows the age distribution of a sample of 180 students at a local college.
AGE DISTRIBUTION OF 180 STUDENTS AT A LOCAL COLLEGE
$\begin{array}{|c|r|}\hline \text { Age Category } & \text { Number of students } \\\hline 15-19 & 36 \\\hline 20-24 & 44 \\\hline 25-29 & 60 \\\hline 30-34 & 38 \\\hline 35-39 & 2 \\\hline \text { Total } & 18 \\\hline\end{array}$
a. Of the students in the sample, what percentage is younger than 20 years of age?
b. What percentage is at least 30 years of age?
c. Based on this sample, what percentage of the students at the college do you estimate to be younger than 25 years of age?

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Definitions:

Multiple Sclerosis

A chronic autoimmune disease affecting the central nervous system, characterized by damage to the myelin sheath around nerve fibers.

Therapeutic Range

The concentration range in which a drug is effective without being toxic, significant for managing the dosage of medication.

Peak And Trough Levels

Measurements used in pharmacokinetics to determine the highest (peak) and lowest (trough) concentrations of a drug in the patient's bloodstream, typically related to dosing regimens.

Therapeutically

In a manner that is healing or intended to have a healing effect, often related to medical treatment.