Answer to Question #16546 in Statistics and Probability for Zaha
1. Compute each value requested for the following set of scores.
0 ΣX + 10
6 Σ(X + 10)
2 Σ(X + 1)2
3 Σ(X – 1)2 + 5
(X - X )2
2. For each of the following cases, name the observed variable and then classify (with expla- nation) the type and nature (discrete or continuous) of the scale:
a) Several respondents were interviewed and asked a few questions. For each question, their responses were coded as Strongly Agree, Strongly Disagree and No Comment.
b) A researcher is investigating the estimated time taken by students to complete an as- signment.
c) A poll studying the number of readers of three leading national news paper; Berita Ha- rian, Utusan Malaysia and New Straits Times.
d) A researcher is studying individual perception of his/her own self-esteem using a 10- point scale self-perception battery.
e) A teacher is grading her students’ academic performance into three different catego- ries: Low Achievers, Average Achievers and High Achievers
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