The prices of the 21​ top-rated 28-inch direct view television sets are as follows
​$
34
340
​$
48
480
​$
50
500
​$
55
550
​$
66
660
​$
77
770
​$
87
870
38
380
49
490
50
500
58
580
68
680
77
770
92
920
43
430
49
490
55
550
63
630
72
720
82
820
94
940

Determine
Upper Q 2
Q2​,
Upper Q 1
Q1​, and
Upper Q 3
Q3.