The First Unit Took 10 Hours and the Third Unit

question 111

Multiple Choice

The first unit took 10 hours and the third unit took 5.7 hours. What is the improvement rate?

• A) 70%
• B) 30%
• C) 50%
• D) 90%
• E) 10%

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Definitions:

Smallest Observation

The minimum value recorded in a set of data.

First Quartile

The value below which 25% of the observations fall, marking the lower quarter of the data set.

Median

The middle value in a sorted list of numbers, dividing the dataset into two halves.

Third Quartile

A statistical term which represents the 75th percentile of a dataset, indicating that 75% of the data points fall below this value.