Question 6
The mean of the numbers 1, 4, k, (k + 4) and 11 is (k + 1). Calculate the:
1) Value of k;
2) Standard deviation.
Observation
The mean of the numbers 1, 4, k, (k + 4) and 11 is (k + 1). Calculate the:
1) Value of k;
2) Standard deviation.