To study the mean ad views of all customers in his store, Kenneth obtains a list of the customers and collects data from every 6th person on the list. Which type of sampling is used

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.