Q 13. Buying cameras The brands of the... [FREE SOLUTION]

91影视

The Practice of Statistics for AP Examination

Daren Starnes, Josh Tabor

$Math Studyset 91影视 Explanations$ Math

6th Edition 路 837 pages

ISBN: 9781319113339

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

Step 1. Given information.

The given table is:

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

Camera Brand	No. of Cameras	Relative Frequency
Canon	23	$\frac{23}{45} = 0.511 or 51.1 %$
Nikon	11	$\frac{11}{45} = 0.244 or 24.4 %$
Sony	6	$\frac{6}{45} = 0.133 or 13.3 %$
Fujifilm	3	$\frac{3}{45} = 0.066 or 6.7 %$
Olympus	2	$\frac{2}{45} = 0.044 or 4.4 %$
Total	45

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.