Find Conditional and Marginal Distributions A) 531% (34 / 64)

question 6

Multiple Choice

Find conditional and marginal distributions.
-A full service brokerage firm gathered information on how their clients were investing
For retirement. Based on age, clients were categorized according to where the largest
Percentage of their retirement portfolio was invested and shown in the table below. Of
The clients who invest in mutual funds, the percentage over age 50 is $$\begin{array} { | l | c | c | c | } \hline & \begin{array} { l } \text { Age 50 or } \\\text { Younger }\end{array} & \begin{array} { l } \text { Over } \\\text { Age 50 }\end{array} & \text { Total } \\\hline \text { Mutual Funds } & 30 & 34 & \mathbf { 6 4 } \\\hline \text { Stocks } & 37 & 45 & \mathbf { 8 2 } \\\hline \text { Bonds } & 19 & 23 & \mathbf { 4 2 } \\\hline \text { Total } & \mathbf { 8 6 } & \mathbf { 1 0 2 } & \mathbf { 1 8 8 } \\\hline\end{array}$$

• A) 53.1% (34 / 64).
• B) 33.3% (34 / 102).
• C) 18.1% (34 / 188).
• D) 34% (64 / 188).
• E) 54.3% (102 / 188).

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Definitions:

Optic Nerve

The nerve that transmits visual information from the retina to the brain.

Visual Cortex

Area in the occipital lobe of the cerebral cortex that integrates visual information and produces the sensation of vision.

Visual Cortex

A part of the cerebral cortex in the brain responsible for processing visual information.

Visual Fields

The range of vision that can be seen without moving the eyes.