The Mathematics Department at a Canadian University Collected Data for the Number

question 28

Multiple Choice

The mathematics department at a Canadian university collected data for the number of students enrolled in 40 math courses over the course of one year.The following stem-and-leaf display shows the total number of students enrolled in each class.
Key:
10 | 6 = 106 students

• A)The distribution of the number of students enrolled in each of 40 math courses is skewed to the left,with a typical class size of 89 students.The smallest class size was 36 and the largest was 123.
• B)The distribution of the number of students enrolled in each of 40 math courses is unimodal and symmetric.The smallest class size was 36 and the largest was 123.The centre of the distribution was around 75 students.
• C)The distribution of the number of students enrolled in each of 40 math courses is nearly uniform.The smallest class size was 36 and the largest was 123.The centre of the distribution was around 89 students.
• D)The distribution of the number of students enrolled in each of 40 math courses is nearly uniform.The smallest class size was 36 and the largest was 123.The centre of the distribution was around 75 students.
• E)The distribution of the number of students enrolled in each of 40 math courses is skewed to the right,with a typical class size of 69 students.The smallest class size was 36 and the largest was 123.

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Definitions:

Facial Expressions

Visible changes in the facial muscles that convey emotions, intentions, or social information.

Communication

The act of transferring information from one place, person, or group to another, whether verbally, non-verbally, or through written media.

Smile

A facial expression formed primarily by flexing the muscles at the edges of the mouth, often indicating joy, amusement, or satisfaction.

Frown

is a facial expression characterized by furrowing one’s brows, often indicating displeasure, sadness, or concentration.