Factor
- $x ^ { 3 } + 8$ A) $( x + 2 ) \left( x ^ { 2 } + 4 \right)$

question 193

Multiple Choice

Factor.
- $x ^ { 3 } + 8$

• A) \(( x + 2 ) \left( x ^ { 2 } + 4 \right)\)
• B) \(( x + 2 ) \left( x ^ { 2 } - 2 x + 4 \right)\)
• C) \(( x - 8 ) ( x + 1 ) ( x - 1 )\)
• D) \(( x - 2 ) \left( x ^ { 2 } + 2 x + 4 \right)\)

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Definitions:

Fair Coin

A theoretical coin which has an equal chance of landing on heads or tails.

Observed Frequencies

The actual number of occurrences or instances of a variable category observed in a statistical sample.

Chi-squared Goodness-of-fit Test

A statistical test used to determine if observed data fits a theoretical distribution.

Rule of Five

A statistical rule of thumb asserting that if a sample size is large enough (n>30), the sample means will be normally distributed.