Shown Below Are the Histogram and Summary Statistics for the Reading

question 3

Multiple Choice

Shown below are the histogram and summary statistics for the reading scores of 29 fifth graders.

Which measures of centre and spread would you use for this distribution?

• A)Mean and standard deviation,because the data is symmetric.
• B)Median and IQR,because the data is skewed to the left.
• C)Mean and standard deviation,because the data is skewed to the left.
• D)Mean and IQR,because the data is skewed to the left.
• E)Median and standard deviation,because the data is skewed to the left.

---

Definitions:

Achievement Motivation

The drive or desire to accomplish goals, excel, and strive for success in tasks and challenges.

External Locus

A belief that one's life is controlled by external forces rather than one's own actions or decisions.

Autonomic Arousal

Involves the activation of the autonomic nervous system, which can include physiological responses such as an increased heart rate or sweating, often as a reaction to stress or excitement.

Polygraph

A machine, often referred to as a lie detector, that measures and records several physiological indicators such as blood pressure, pulse, respiration, and skin conductivity while the subject is asked and answers a series of questions.