Question

pets - r - us randomly asked customers purchasing cat food the number of times they feed their cat each day. the dot - plot below shows the survey results. which of the following statements is not true about the results? a 30% of the customers surveyed feed their cat 3 or 4 times a day. b 4% of the customers surveyed feed their cat five times a day. c 80% of the customers surveyed feed their cat less than 4 times a day. d 65% of the customers surveyed feed their cat less than 3 times a day.

Explanation:

Step1: Count total number of data - points

Count all the dots in the dot - plot. There are 22 data - points.

Step2: Analyze Option A

The number of customers who feed their cat 3 or 4 times a day: There are 3 + 4=7 customers. The percentage is $\frac{7}{22}\times100\approx31.8\%
eq30\%$.

Step3: Analyze Option B

The number of customers who feed their cat five times a day is 4. The percentage is $\frac{4}{22}\times100\approx18.2\%\approx18\%$.

Step4: Analyze Option C

The number of customers who feed their cat less than 4 times a day: 11 customers (sum of dots for 1, 2, 3 feedings). The percentage is $\frac{11}{22}\times100 = 50\%
eq65\%$.

Step5: Analyze Option D

The number of customers who feed their cat less than 3 times a day: 7 customers (sum of dots for 1 and 2 feedings). The percentage is $\frac{7}{22}\times100\approx31.8\%
eq80\%$.

Answer:

A. 30% of the customers surveyed feed their cat 3 or 4 times a day.