Question

A pet store surveyed three groups of 5 customers to find out how many pets the customers owned. The table shows the results of the three samples. Survey Number of Pets Group 1 {1, 3, 2, 2, 3} Group 2 {6, 5, 7, 3, 4} Group 3 {2, 3, 1, 1, 4} Identify surveys that are likely biased. Based on the unbiased surveys, estimate the mean number of pets that the customers own. Enter your answer in the box. Round to the nearest whole number.

Answer 1

the answer is 2 hope it helps 

Answer 2

The surveys that are likely biased are that of group 1 and group 3.

The mean number of pets that the customers own in the unbiased survey is 5

What is arithmetic mean?

Arithmetic mean is simply the average of a given set numbers. It is determined by dividing the sum of a given set number by their number of appearance.

Mean = Sum total of the number ÷ n

Where n is number of numbers

First, comparing the three groups, you will notice that Group 1 and Group 3 has repeated response from the customer. This shows that, the survey question must have been asked in such a way that limits the vast response they might have gotten from the customers.

Hence, the survey that are likely biased are that of Group 1 and Group 2.

Now, given the data set of the unbiased survey;

• Data set; Group 2 ( 6, 5, 7, 3, 4 )
• n = 5

First, we add the numbers.

6, 5, 7, 3, 4 = 25

Mean = sum / n

Mean = 25 / 5

Mean = 5

Therefore, the surveys that are likely biased are that of group 1 and group 3.

The mean number of pets that the customers own in the unbiased survey is 5.

Learn more about arithmetic mean here: brainly.com/question/13000783

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