This box plot displays information about the number of text messages some students sent one day. What is the median number of texts sent by students? What is the IQR (interquartile range)? Is this data set symmetric? Explain how you know.

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?