(Solved): 20. For the following set of scores find the value of each expression: a. \( \boldsymbol{\varepsilo ...

20. For the following set of scores find the value of each expression: a. \( \boldsymbol{\varepsilon X} \) b. \( \boldsymbol{\varepsilon x}^{2} \) c. \( \varepsilon(x+3) \) \( \boldsymbol{\varepsilon} \) (Means summation) \( \boldsymbol{\varepsilon x} \) (Means sum of the scores) Set of scores: \( \mathrm{X}=6,-1,0,-3,-2 \).