Consider the SmartPhone file regarding smartphone ownership by age. a. Construct a stacked column chart to display the survey data on type of mobile phone ownership. Use Age Category as the variable on the horizontal axis. b. Construct a clustered column chart to display the survey data. Use Age Category as the variable on the horizontal axis. c. What can you infer about the relationship between age and smartphone ownership from the column charts in parts a and b? which column chart (stacked or clustered) is best for interpreting this relationship? Why?