Question

researchers asked 300 families whether or not they were homeowners and how many cars they had. their responses are summarized in the following table.

	no car or one car	two or more cars
not a homeowner	54	99

(a) what percentage of the families are not homeowners?
□%
(b) what percentage of the families have no car or one car?
□%

Explanation:

Step1: Calculate total number of families

The total number of families is the sum of all values in the table, $21 + 126+54 + 99=300$.

Step2: Calculate number of non - homeowners

The number of non - homeowners is $54 + 99 = 153$.

Step3: Calculate percentage of non - homeowners

The percentage of non - homeowners is $\frac{153}{300}\times100\% = 51\%$.

Step4: Calculate number of families with no car or one car

The number of families with no car or one car is $21+54 = 75$.

Step5: Calculate percentage of families with no car or one car

The percentage of families with no car or one car is $\frac{75}{300}\times100\%=25\%$.

Answer:

(a) 51%
(b) 25%