Question 7 1 pts If the skewness index is 3 and the standard error is very small, the distribution is likely to be positively skewed. 0 True 0 False Question 12 1 pts l'The more categories reported in a nominal variable, the less variability\" 0 True 0 False Question 13 1 pts If the distribution is negatively skewed, it has outliers to the right. True 0 False Question 14 1 pts Jane concludes that the mean of her symmetric distribution is greater than the median. 0 True 0 False For Q23-26: Probability Court decisions: the data in the following table show the outcomes of guilty and nonguilty pleas in 1,028 criminal court cases. Total 956 72 1028 What is the probability that a randomly selected defendant pled guiltym was sent to prison? O 0.381 0 0.806 O 0.976 O 0.986 Question 25 Court decisions: the data in the following table show the outcomes of guilty and non-guilty pleas in 1,028 criminal court cases. Not sent to -rison 564 14 578 1 028 What is the probability that a randomly selected defendant either pled guiltyg was sent to prison? 0 0.381 o 0.806 o 0.976 O 0.986 Question 26 Court decisions: the data in the following table show the outcomes of guilty and non-guilty pleas in 1,028 criminal court cases. What is the probability that a randomly selected defendant who was sent to the prison given that s/he did not plead guilty? 0 0.381 O 0.806 O 0.976 O 0.986 Question 27 Court decisions: the data in the following table show the outcomes of guilty and non-guilty pleas in 1,028 criminal court cases. Not sent to prison Total What is the probability that a randomly selected defendant who did not plead guilty given that s/he was not sent to prison? 0 0.014 O 0.024 o 0.056 o 0.129 Question 28 2 pts For Q27-Q29 : Z-SCORE John Beale of Stanford, CA, recorded the speeds of cars driving past his house, where the speed limit read 20 mph. Suppose that these recordings follow an approximately normal distribution. The mean of several readings was 23 mph, with a standard deviation of 3 mph. What is the z-score that a car going at or under the speed limit? Click for Z-table here (https://www.dropbox.com/sc87yytft8te6c9/Ztable.pdf?dl=0z ) O -1 O -3 O 1 0 3 Question 29 2 pts What is the probability that a car going at or under the speed limit? 0 0.0013 O 0.1587 O 0.6800 O 0.8413Question 30 2 pts What is the probability that a car going above the speed limit? 0 0.0013 0 0.1537 0 0.8413 0 0.9987