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Chapter 1: Q 13. (page 24)

Buying cameras The brands of the last 45 digital single-lens reflex (SLR) cameras sold on a popular Internet auction site are listed here. Make a relative frequency bar graph for these data. Describe what you see.

Short Answer

Expert verified

Canon dominates all other brands.

Step by step solution

01

Step 1. Given information.

The given table is:

02

Step 2. Find the relative frequency of each camera brand.

Camera Brand
No. of CamerasRelative Frequency
Canon
232345=0.511or51.1%
Nikon111145=0.244or24.4%
Sony6645=0.133or13.3%
Fujifilm3345=0.066or6.7%
Olympus2245=0.044or4.4%
Total45
03

Step 3. Construct a frequency bar graph.

Canon clearly outnumbers all other brands, as evidenced by the bar graph, which shows that each brand on the right has half the relative frequency of the brand on the left.

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