Question

percentage of the people surveyed didnt select as their favorite car?
favorite car | no. of people
holden | 50
mazda | 28
porsche | 48
ferrari | 74
favorite car is not holden = %

Explanation:

Step1: Calculate total number of people

We sum up the number of people for each car. So, \( 50 + 28 + 48 + 74 \)
First, \( 50+28 = 78 \), then \( 78 + 48 = 126 \), then \( 126+74 = 200 \). So total people \( N = 200 \).

Step2: Calculate number of people not selecting Holden

Number of people selecting Holden is 50, so number of people not selecting Holden is \( 200 - 50 = 150 \).

Step3: Calculate the percentage

Percentage is \( \frac{\text{Number of people not selecting Holden}}{\text{Total number of people}} \times 100 \)
So, \( \frac{150}{200} \times 100 \)
Simplify \( \frac{150}{200}=\frac{3}{4} \), and \( \frac{3}{4} \times 100 = 75 \).

Answer:

75