Suppose a data set has mean and standard deviation

MATHEMATICS · Multi-part · A Level · Mathematics · Data presentation and interpretation · Data presentation and interpretation

Problem

Suppose a data set {xi}\{x_i\} has mean μ\mu and standard deviation σ\sigma . Write down the mean and standard deviation for the data set: (a) {axi}\{ax_i\} (b) {xi+k}\{x_i + k\} (c) {axi+k}\{ax_i + k\}

Related theory

Browse the problem library