I'm creating a cheat sheet for statistical measures. Please help making it complete:
How does ... effect mean, median, mode, range, and std. dev.?
1) Add constant: Add same constant to mean, median, mode; range and std. dev. not affected.
2) Multiply with constant: Multiply mean, median, mode, range, std. dev. with the constant.
(In general: A linear transformation y=ax+b affects location measures like mean, median, and mode in the same way, but dispersion measures only affected by the multiplicative factor a.)
3) Changing the sample?
I need help with 3)
How does ... effect mean, median, mode, range, and std. dev.?
1) Add constant: Add same constant to mean, median, mode; range and std. dev. not affected.
2) Multiply with constant: Multiply mean, median, mode, range, std. dev. with the constant.
(In general: A linear transformation y=ax+b affects location measures like mean, median, and mode in the same way, but dispersion measures only affected by the multiplicative factor a.)
3) Changing the sample?
I need help with 3)
