The heights (in inches) for a sample of 20 male adults are 62, 82, 79, 76, 73, 70, 67, 64, 61, 80, 79, 75, 60, 60, 60, 71, 71, 74, 74, 74
Draw the frequency_polygon for these data using an initial class boundary of 59.5 and a class width of 5. Note that you can add or remove classes from the figure. Label each class with its midpoint.

Do social recommendations increase ad effectiveness? a study of online video viewers compared viewers who arrived at an advertising video for a particular brand by following a social media recommendation link to viewers who arrived at the same video by web browsing. data were collected on whether the viewer could correctly recall the brand being advertised after seeing the video. the results are given below. correctly recalled the brandarrival 409153browsing20484b. conduct the hypothesis test, using the 0.025 level of significance. what is the value of the test statistic? χ2stat=what is the p-value? p-value=is this value significant atα=0.025?

With finding limits of multi variable !

Complete the steps to find 4.830 ÷ 5