Which One of the Following Statements Can Be Used to Extract

question 59

Multiple Choice

Which one of the following statements can be used to extract the last five characters from any string variable str?

• A) str.substring(str.length() - 5, str.length())
• B) str.substring(5, 5)
• C) str.substring(str.length() - 4, 5)
• D) str.substring(str.length() - 5, 5)

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Definitions:

Resample Means

A statistical method involving the calculation of the mean from multiple subsamples of a dataset to assess variability.

Original Data Set

The initial collection of data or observations before any processing or analysis has been conducted.

Trimmed Mean

A measure of central tendency calculated by removing a certain percentage of the smallest and largest values from a data set before calculating the mean of the remaining data.

Bootstrap Confidence Interval

A method for estimating the uncertainty of a statistic by resampling the original data and calculating the statistic across these samples to form an interval.