628MathematicsMedium
The data which have already been collected by some one are called________?
ARaw data
BFictitious data
CArray data
DSecondary data
Correct answer
D. Secondary data
Explanation
The correct answer is Secondary data.
Correct answer
D. Secondary data
Explanation
The correct answer is Secondary data.
If a & b are constants, then Var (a + bX) equal to________?
Standard normal variable Z is________?
If the sampled population has a normal distribution, when is the sampling distribution of the sample mean X also a normal distribution?
Major area of statistics today is concerned with drawing of conclusions from________?
An events that contains the finite number point the sample space is called ________?
The variance of 5 numbers is 10. If each number is divided by 2, then variance of new number is________?