If the mode of the following data is 18, then find the value of p? 18, 7, 11, (2p-2), 18, 12, 12, 17, 18, 7

10 8 12 9

10

As, 12 and 7 occuring two times but 18 is mode . so, (2p-1) must be equal to 18 i.e. (2p-2) = 18             2p = 20               p= 10