A certain deck of cards has cards that show one of five different shapes with equal​ representation, so that the probability of selecting any particular shape is 0.20. A card is selected​ randomly, and a person is asked to guess which card has been chosen. The attached graphs show a computer simulation of experiments in which a​ "person" was asked to guess which card had been selected in a large number of trials. Each dot in the dotplots represents the proportion of successes for one person. One dotplot represents an experiment in which each person had 10​ trials; another shows 20​ trials; and a third shows 40 trials. Explain how you can​ tell, from the shapes of the​ graphs, which has the largest sample ​(n

Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?