Find the Partial Sum of the Given Sequence $\sum _ { i = 2 } ^ { 4 } i ( i - 5 )$

question 7

Multiple Choice

Find the partial sum of the given sequence.
- $\sum _ { i = 2 } ^ { 4 } i ( i - 5 )$

• A) 3
• B) \(- 20\)
• C) \(- 10\)
• D) \(- 16\)

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Definitions:

Median

The middle value in a data set, which separates the higher half from the lower half.

Range

In statistics, range is the difference between the largest and smallest values in a dataset.

Variance

A measure of the dispersion of a set of data points around their mean value, indicating how spread out the data are.

Deviations

Differences between observed values and some reference value, often the mean of the dataset.