Examine a Contingency Table A) 441 % (275 / 623)

question 15

Multiple Choice

Examine a contingency table.
-A large national retailer of electronics conducted a survey to determine consumer
Preferences for various brands of digital cameras and the data are summarized in the table
Shown below. The percentage of consumers who are male and prefer Pentax is $$\begin{array} { | c | c | c | c | } & \text { Female } & \text { Male } & \text { Total } \\\hline \text { Sony Cyber-Shot } & 73 & 59 & \mathbf { 1 3 2 } \\\hline \text { Kodak - Easy Share } & 49 & 47 & \mathbf { 9 6 } \\\hline \text { Cannon Power Shot } & 58 & 33 & \mathbf { 9 1 } \\\hline \text { Pentax } & 37 & 41 & \mathbf { 7 8 } \\\hline \text { Olympus } & 45 & 28 & \mathbf { 7 3 } \\\hline \text { Other Brands } & 86 & 67 & \mathbf { 1 5 3 } \\\hline \text { Total } & \mathbf { 3 4 8 } & \mathbf { 2 7 5 } & \mathbf { 6 2 3 }\end{array}$$

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Definitions:

Iris

The colored part of the eye surrounding the pupil, controlling the amount of light entering the eye by adjusting the size of the pupil.

Sclera

The white, outer layer of the eyeball, providing protection and form.

Ciliary Muscle

Smooth muscle in the ciliary body of the eye.

Retina

is the light-sensitive layer at the back of the eye that contains photoreceptor cells, which convert light into neural signals for visual recognition.