Solve the equation below and find the variation constant, k
Find x when y= 141 and z = 19, if y varies jointly as x
and z, and y = 61 and x = 4 when z = 20.*
*Round your answer to the nearest thousandth, if necessary.

Step-by-step explanation:

Suppose there is the addition of a constant "b" to each generic dataset, then, new mean = old mean + b. This will affect the variance and the standard deviation of the resulting dataset to remain the same:

From the information given:

Proof:

If c is added to each data set:

Then,

also;