Question

an outlier can mess which of the following values: iqr median mode mean

Explanation:

Step1: Understand the effect of outliers

Outliers are extreme values. Mean is the sum of all values divided by the number of values. Extreme values (outliers) can greatly affect the sum and thus the mean.

Step2: Analyze other measures

IQR (Inter - Quartile Range) is based on quartiles and not affected by extreme values. Median is the middle value when data is ordered and mode is the most frequently occurring value, both are not influenced much by outliers.

Answer:

Mean