A survey of randomly selected shopping malls yields the

Last updated: 5/4/2023

A survey of randomly selected shopping malls yields the following data on the number of movie screens they contain 1 3 0 3 3 4 Movie screens Number of malls x Take X to be the number of movie screens in a selected mall so the values of X are given in the top row of the chart The frequencies are then the numbers in the second row For instance we observed X 0 no movie screens a total of 3 times as 3 of the malls had no movie screens So we rewrite the table as follows P X x 0 1 X 2 Check Clear 0 3 3 The experiment was performed a total of times Check Clear I give up To obtain the probability distribution divide each frequency by the total number of times the experiment was performed Do it 1 3 Frequency Think of the survey as repetitions of an experiment in which a mall is selected at random without replacement and the value of X is measured the number of screens 4 2 4 2 4 5 3 4 4 3 4 3 5 3 5 3