Linear Coding

Question 1

If you add a to all of the data then the new mean will be:

Answer 1

old mean + a

Question 2

If you times all the new data by a then the new mean will be

Answer 2

the old mean * a

Question 3

If you add “a” to all of the data then the new standard deviation will be:

Answer 3

The same as the old one

Question 4

If you times all the data by “a” then the new standard deviation will be

Answer 4

Old standard deviation * a