(a) The number which appeared the minimum number of times (i.e., 4 times) is 4.
(b) The number which appeared the maximum number of times (i.e., 11 times) is 5.
(c) 1 and 6 are the numbers which appear for the same number of times (i.e., 7 times).
Complete the drawing shown in Fig. 9.14 to indicate where the free ends of the two wires should be joined to make the bulb glow