He following data points represent the number of quesadillas each person at Toby's Tacos ate.
Sort the data from least to greatest.
00
0
0
12\dfrac12
2

1


start fraction, 1, divided by, 2, end fraction
00
0
0
11
1
1
12\dfrac12
2

1


start fraction, 1, divided by, 2, end fraction
22
2
2
11
1
1
14\dfrac14
4

1


start fraction, 1, divided by, 4, end fraction
54\dfrac54
4

5


start fraction, 5, divided by, 4, end fraction
22
2
2
11
1
1
Find the interquartile range (IQR) of the data set.