How long do people travel each day to get to work? The following table gives the average travel times to work (in minutes) for workers in each state and the District of Columbia who are at least 16 years old and don’t work at home.

AL	23.6
AK	17.7
AZ	25.0
AR	20.7
CA	26.8
CO	23.9
CT	24.1
DE	23.6
FL	25.9
GA	27.3
HI	25.5
ID	20.1
IL	27.9
IN	22.3
IA	18.2
KS	18.5
KY	22.4
LA	25.1
ME	22.3
MD	30.6
MA	26.6
MI	23.4
MN	22.0
MT	24.0
NE	22.9
NV	17.6
NH	17.7
NJ	24.2
NM	24.6
NY	29.1
NC	20.9
ND	30.9
OH	23.4
OK	15.5
OR	22.1
PA	20.0
RI	21.8
SC	25.0
SD	22.3
TN	22.9
TX	15.9
UT	23.5
VT	24.6
VA	20.8
WA	21.2
WV	26.9
WI	25.2
WY	25.6
DC	20.8

a. Make a histogram to display the travel time data using intervals of width 2 minutes, starting at 14 minutes.

b. Describe the shape of the distribution. What is the most common interval of travel times?