3) The histogram shows frequencies for the ages of 25 CEO's listed at Forbes.com. a) Convert this histogram to one showing relative frequencies by relabeling the vertical axis with appropriate relative frequencies. Just give the new labels along the vertical axis. (1 know it will look messy!) Frequency 48 56 64 72 Age (years) b) What variable is being measured? Is this categorical or numerical? ) What percent of these 25 CEO's are 64 years of age or older? Round to the nearest hundredth. d) Describe the shape, center, and spread of this distribution