If the mean of the following data is 18.75. Find the value of p.


xi:



10



15



p



25



30



yi:



5



10



7



8



2



X



y



yx



10



5



50



15



10



150



P



7



7p



25



8



200



30



2



60




N = 32



∑yx = 7p + 460



Given,


Mean = 18.75


= 18.75


= 18.75


7p + 460 = 18.75 (32)


7p + 460 = 600


7p = 140


p = 20


Hence, the value of p is 20


15