5, 8, 6 and k occur with frequency 3, 2, 4, and 1 respectively an d have a mean of 5.7. Find the value of k
Answer Details
The mean of the given numbers is 5.7.
Mean = (sum of all numbers) / (total number of numbers)
Therefore,
(5*3 + 8*2 + 6*4 + k*1) / (3+2+4+1) = 5.7
Simplifying the above equation, we get:
(15 + 16 + 24 + k) / 10 = 5.7
55 + k = 57
k = 2
Therefore, the value of k is 2.