For the data 1, 5, 7, + 1, 9, – 2, 3, if the mean is 4. Find the value of . Using this value of , also find mode.
x = 2, mode = 3
x = 3,mode = 4
x = 2, mode = 8
x = 4, mode = 6
If the mean of the data 3,21, 25, 17, (x+ 3), 19, (x- 4) is 18, find the value of x. Using this value of x, find the mode of the data.