he following is the number of minutes to commute from home to work for a group of $25$ automobile executives.

$28254837411932261623232936$

$312621322531433542383328$ 

An order version of the Microsoft Excel logo$.$ Click here for the Excel Data File

Required:

a$.$ How many classes would you recommend?

b$.$ what class interval would you suggest?

$($Note: Round up your answer to the nearest whole number.$)$

c$.$what would you recommend as the lower limit of the first class?

d$.$ Organize the data into a frequency distribution.

$($refer to chart if needed$)$