Question

a survey asked 20,000 national park visitors to choose their favorite type of landscape. the results are shown in the following table. (a) find the percentage for each type of landscape.

type of landscape	number of park visitors	percentage
jungle	5600
desert	1400
coast	3200

(b) construct a percent bar graph for the data.

Explanation:

Step1: Recall percentage formula

The formula for percentage is $\text{Percentage}=\frac{\text{Number of visitors for a type}}{\text{Total number of visitors}}\times100\%$. The total number of visitors is $20000$.

Step2: Calculate percentage for Lakeside

For Lakeside, $\text{Percentage}=\frac{9800}{20000}\times 100\% = 49\%$.

Step3: Calculate percentage for Jungle

For Jungle, $\text{Percentage}=\frac{5600}{20000}\times 100\%=28\%$.

Step4: Calculate percentage for Desert

For Desert, $\text{Percentage}=\frac{1400}{20000}\times 100\% = 7\%$.

Step5: Calculate percentage for Coast

For Coast, $\text{Percentage}=\frac{3200}{20000}\times 100\%=16\%$.

Answer:

Type of landscape	Percentage
Jungle	28%
Desert	7%
Coast	16%

(Note: To construct the percent - bar graph for part (b), you would draw bars with heights corresponding to the percentages calculated above. For example, the bar for Lakeside would be at 49% on the vertical axis, the bar for Jungle at 28%, the bar for Desert at 7% and the bar for Coast at 16%.)