Given the Contingency Table Shown Here, Find P(A₁ or B₂)

question 59

Multiple Choice

Given the contingency table shown here, find P(A₁ or B₂) . $$\begin{array} { |c | c | c | c | c | c | } \hline{ } & { A _ { 1 } } & A _ { 2 } & A _ { 3 } & A _ { 4 } & \text { Row Total } \\\hline B _ { 1 } & 12 & 26 & 42 & 68&148 \\\hline B _ { 2 } & 14 & 28 & 44 & 64 &150\\\hline B _ { 3 } & 18 & 32 & 47 & 72 &169\\\hline \text { Col Total } & 44 & 86 & 133 & 204 & 467 \\\hline\end{array}$$

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Definitions:

Excitatory

Pertaining to or causing excitation, often used in the context of neurotransmitters that increase the likelihood of a neuron firing an action potential.

Action Potential

A rapid rise and subsequent fall in voltage or membrane potential across a cellular membrane, a process essential for nerve impulse transmission.

Electrical Voltage

The difference in electric potential between two points, which drives the flow of electric current in a circuit.

Neurogenesis

The process of generating new neurons in the brain.