A company with a fleet of 150 vehicles discovered that seven out of the 22 emissions systems they evaluated did not adhere to pollution control standards. Is this conclusive proof that up to 20% of the fleet may not be in compliance? Test a relevant theory, then provide your findings. Before moving on, confirm that all necessary presumptions and criteria have been met.
The game of Clue involves 6 suspects, 6 weapons, and 9 rooms. One of each is randomly chosen and the object of the game is to guess the chosen three. (1) How many solutions are possible? In one version of the game, the selection is made and then each of the players is randomly given three of the remaining cards. Let S, W, and R be, respectively, the numbers of suspects, weapons, and rooms in the set of three cards given to a specified player. Also, let X denote the number of solutions that are possible after that player observes his or her three cards. (2) Express X in terms of S, W, and R. (3) Find E[X]
With the supplied parameters, an experiment in binomial probability is carried out.
Compute the probability of x successes in the n independent trials of the experiment.
Graph the following data on a scatterplot. a. Does the graph show either a positive or a negative association? b. Does there appear to be a connection between height and spelling ability? c. Does greater height cause better spelling ability? d. What other factors could create the association you see?