In order to check if the corner of a window is truly a right angle, a carpenter measures 6 and 8 inches along the windowpane on either side of the corner. Then he measures the distance from the ends of the first two measurements. He finds that
length to be 10.5 inches. What conclusions can the carpenter make about that corner? (Select all that apply.)

The ages of personnel in the accounting department of a large company are normally distributed with a standard deviation of 7 years. there is a 0.02275 probability that the age of any randomly chosen person in the department is less than 22 and 0.15866 probabilty that the age of any randomly chosen person is greater than 43. what is the mean of this distribution?