Question

1. which of the following is a systematic error that can distort survey results?

a. median
b. bias
c. mean
d. variance

Explanation:

• Median: It is a measure of central tendency, not an error.
• Bias: It is a systematic error. It occurs when the sampling method or data collection process is flawed, leading to results that systematically deviate from the true value.
• Mean: It is a measure of central tendency, not an error.
• Variance: It is a measure of dispersion, not an error.

Answer:

B. Bias