The Lists Below Show Five Agricultural Crops in Alabama, Arkansas

question 42

Multiple Choice

The lists below show five agricultural crops in Alabama, Arkansas, and Louisiana.
$\begin{array} { l l l } \underline { \text { Alabama } } & \underline { \text { Arkansas } } & \underline { \text { Louisiana } } \\\text { soybeans (s) } & \text { soybeans (s) } & \text { soybeans (s) } \\\text { peanuts (p) } & \text { rice (r) } & \text { sugarcane (n) } \\\text { corn (c) } & \text { cotton (t) } & \text { rice (r) } \\\text { hay (h) } & \text { hay (h) } & \text { corn (c) } \\\text { wheat (w) } & \text { wheat (w) } & \text { cotton (t) }\end{array}$
Let U be the smallest possible universal set that includes all of the crops listed, and let A, K and L be the sets of five crops in Alabama, Arkansas, and Louisiana, respectively. Find each of the following sets.
- $L ^ { \prime } \cap \mathrm { A }$

• A) \(\{ n , r , t \}\)
• B) \(\{ c , s \}\)
• C) \(\{ h , p , w \}\)
• D) \(\{ \mathrm { h } , \mathrm { n } , \mathrm { t } , \mathrm { w } \}\)

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Definitions:

7 ± 2

A theory suggesting that the average person can hold about 7 (plus or minus 2) items in their working memory.

Miller

Refers to George A. Miller, a cognitive psychologist best known for his theory regarding the limit of short-term memory capacity, often summarized as "seven, plus or minus two" pieces of information.

Memory Capacity

Memory capacity refers to the amount of information that can be stored in the memory system at any given time.

Sensory Register

The component of memory that holds incoming sensory information for a very short period of time, almost like a snapshot.