The accompanying table describes results of roadworthiness tests of cars that are 3 years old. The random variable x represents the numbers of cars that failed among six that were tested for roadworthiness. Find the mean and standard deviation for the number of cars that failed among the six cars that are tested. Click the icon to view the data. Find the mean for the number of cars that failed. More Info H =(Round to one decimal place as needed.) Find the standard deviation for the number of cars that failed. Probabilities of Numbers of Cars that Failed among Six Tested 6= (Round to one decimal place as needed.) x (Number of Cars that Failed) P(x) 0.299 0.274 0.219 OUTAWNHC 0.115 0.093 di 0+ . 0+ e ! Enter your answer in each of the answer boxes. Print Done TI Save for Later