The manager of a shopping mall distributed a customer-satisfaction survey by handing it to people as they came through one of the doors to the mall one day. of those handed out, 215 were completed and returned. should the results of the survey be generalized to the population of all customers of the shopping mall?

No. The results of the survey cannot be generalized to the population of all customers of the shopping mall.

Step-by-step explanation:

Survey results are biased, because data is collected from customers who came trough one specific door of the mall.

Some of the customers may be using some other door where satisfaction survey is not given to these people while passing the door.

Therefore survey results does not reflect thoughts of the population of all customers.

No, because a random sample from all customers of the shopping mall was not selected.

Step-by-step explanation:

In taking a survey, it's quiet obvious that everybody cannot be reached and the opinion of all cannot also be heard. That is why a good survey is taken at random and not from one set of individual. Therefore, the results of the survey can't be generalized.

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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