The population proportion of red automobiles in the United States exists 22 %.
What is meant by proportion?
An analysis of two numbers in terms of their proportion. A ratio is said to be directly proportional to another if two sets of given numbers are increasing or decreasing in the same ratio.
The proportion of red automobiles in the United States(P) is given by:
P = [Number of red automobiles / Number of automobiles in US ]× 100
According to the table
Number of red automobiles = 32 + 29 + 23
Number of red automobiles = 84
Number of automobiles
= 32 + 29 + 23 + 18 + 36 + 25 + 4 + 17 + 11 + 25 + 26 + 39 + 10 + 46 + 33
Number of automobiles = 374
put the values into the equation
P = [Number of red automobiles / Number of automobiles in US ] × 100
substitute the values in the above equation, we get
P = [84 Cars / 374 Cars] × 100
simplifying the above equation, we get
Proportional = 0.2245 × 100
Proportional = 22.45
Proportional = 22 percentage
Therefore, the correct answer is option D. 22 %.
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