the ages of people signed up for piano lessons are listed.
11, 16, 15, 9, 19, 12, 13, 13, 11, 11, 18, 17
what is the mode of the ages.
a ( 13
b ( 12
c ( 15
d ( 11
11, 16, 15, 9, 19, 12, 13, 13, 11, 11, 18, 17
what is the mode of the ages.
a ( 13
b ( 12
c ( 15
d ( 11